IPhone 3GS with fw 3.1 – battery life gets even worse

I've made the so long attended upgrade to iPhone OS 3.1 and strangely battery life has got even worse than before. The phone is using 10-12% of the battery every hour of standby; usage counter grows by 35-40 minutes for every hour of standby. This happens with a clean install and just email setup (mobileme with push), with restore or partial restore. Turning push off only makes it slightly better.
I was wondring if I were the only one experiencing this...

This is not even funny Jason... Really.
I now have a completely clean phone, installed anew through DFU. Now backups restored. Just setup my mobileme email on it and installed 2 (two) applications. iSip and DevInfo. Having push notifications and push email enabled, I'm loosing power at a rate of *8%/hour while in standby*.
Restoring my backup (which, by the way, is not an "option" but a rather important continuity pre-requisite) lets me have the same horrible battery performance. Turning push notifications and mail push off and booting the phone after that makes battery drain disappear (~1% every 1.5 hours).
Apple declares that using "Push" drains the battery 20% more. Even if this is an approximation, we're not even close to approximately 20% or 30% or even 40% increase. We're talking about battery drain growing 12-fold!
So pray try to help us – poor users – instead of repeating the link we've all seen thousands of times and that, frankly, has very little to do with how our iPhones perform in real life.
Thank you.

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IPhone 3GS with fw 3.1 – battery life gets even worse

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