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Battery Life and apps - specifically: Whatsapp, Gr...

Update:10-11Source: network consolidation
Experiment: Smartphone battery life and Web 2.0 applications
Objective: To determine the battery life of a Nokia Symbian S60v3 {or ^3} phone under the use of web applications, the majority of which are social networking apps.
Apparatus: Nokia S60v3 FP1 (E90 Communicator, E71, etc) {or ^3 (N8, E7)}, Gravity, Nimbuzz, Nokia Email, Joikuspot, Whatsapp, MXit, BirdStep SmartConnect & Lights On. 3G/GPRS internet connection.
Install the latest versions of the softwares mentioned, activate Whatsapp (through sms). Use all apps as desired.
With Nokia Email, set sync period for wake/daytime only, i.e. when you are awake - say 06h45 to 22h45, daily.
For Network mode, select dual mode (S60v3: Menu/Tools/Settings/Phone/Network; ^3: Menu/Settings/Connectivity/Network)
At commencement of sleep period (first night), exit all apps. Set your alarm. In the morning, check Log (S60v3: Menu/Log; ^3: Menu/Applications/Tools/Log), scroll across to the list, note all Packet Data connection attempts.
Use applications at will on day two, shutting down/going offline with those you do not require. If the battery gets flat, charge it, continue to use apps/browsers if you can/need.
At commencement of sleep (second night), select go offline for Nokia Email (S60v3: Nokia Email {main menu}/Options/Go Offline), exit all others apps. In the morning, check and note Log parameters.
Repeat steps 4, 5 & 6 with varying Network mode (step 2). In all cases, phone should stay in a non-offline state - people should be able to reach you via phone call or sms at all times.
Make sure you clear browser cache every night prior to bedtime. You should check Browser (Menu/Web/Options/Clear Privacy Data/Clear Cache). Further, remove or disconnect battery to completely freshen the system.
Finally, delete Whatsapp, and repeat step number 4.
The results for steps 1 to 8, inclusive, are essentially similar, in that access points (S60v3: Menu/Tools/Settings/Connection/Access Points & Menu/Tools/Sett. wizard, alternatively use your service provider to define access points) are activated throughout the sleep period, as follows (13 July 2011):
Internet .Vodacom(01): 00:38; 00:46; 00:54; 01:03, etc.
Internet.GPRS: 00:37; 00:41; 00:45; 00:49; 00:52; 00:57: 01:00 , etc.
Internet.GPRS(Joiku): 00:38; 00:46; 00:54; 01:02 , etc.
Vlive!: 00:39; 00:47; 00:55 , etc.
WAP.Vodacom: 00:39; 00:48; 00:53; 00:56 , etc.
Vlive!Streaming: 00:41; 00:48; 00:56 , etc.
Vlive!MMS: 00:43; 00:51; 00:58 , etc.
Internet.Vodacom: 00:37; 00:42; 00:45; 00:50; 00:58; 01:01 , etc.
BS_Gravity App: 00:41; 00:49; 00:57 , etc.
BS_Browser: 00:42; 00:50; 00:58 , etc.
 Basically, an app is active throughout the the night. All data connections are outwards, last 5 or 8 seconds, a few last 34 seconds, most receive/transmit zero data, a few receive 1 kB. The final connection was an outward 12 minute 55 second at 05:08 using the Internet.Vodacom access point, sent 65 kB & received 360 kB.
Upon deletion of Whatsapp, no data connection attempt is made throughout the sleep period.
Conclusion: There is no way of turning off completely Whatsapp. Further, general phone use throughout the day disguises minute-by-minute data connection attempts by Whatsapp. This is wholly unacceptable app development in light of limited battery development for all smartphone platforms. All other apps installed on these devices have kill switches if you do not wish to continue use. All other apps, including the pricy Gravity, operate within the limits of the battery technology available and within the capabilities of the Symbian system. I do not think the trade off - all-encompassing IM service over sms sacrificing battery life is fair.
BS_Gravity App & BS_Browser are access points defined in the Birdstep SmartConnect Client for Nokia ESeries phones. It's a client that aggregates normal network operator access points as well as Wi-Fi access points so that you do not have to continuously change access points on apps. BS_Gravity App for Gravity and all other social IM apps, BS_Browser for Web browser and Opera browsers.
Following deletion of Whatsapp, my E90 is back to around 4 hours battery duration under heavy use, primarily a very active Gravity & Web browser, up from about an hour with Whatsapp.
I am extremely content with general day to use of my Nokia phones, E90 & N8 alike. The E90 continues great operation, what I'd expect, the N8 covers base primarily browser capability - all other strengths complimentary.
Joikuspot is a considerable power user for extended use, but this is understandable, as the app gathers and transmits data which requires lots of power - basically, it's like having a 3G connection going boths ways. I'd imagine that any similar app on any competing platform saps power.
Recommendation: Install an on/off switch on the Whatsapp application. Please. Thank you.
Symbian connected me to the world, to my dreams.. Thank-you Nokia

The Best Answer

I found unacceptable issues with the software, namely very high battery use. Many consumers will come to Nokia first before they complain to a developer - if indeed they ever do complain there. Use of the app in question paints Nokia batteries in a much harsher light than reality - people should be aware of this before they install the software.
There's a software issue here (developer x), and a software solution (developer y). The following link explains how to use y to defend from the excesses of x:
Symbian connected me to the world, to my dreams.. Thank-you Nokia