Battery problems after update?

i have the same problem with my 2g 8gb ipod touch I get about 20min of 3d gaming. 6 houres of music ect...

 

It's some of the programs in multitasking drawers that suck the battery. Double click the home button, and close all of them (by touching them for few seconds and tapping the "do not enter" button)

 

Most Apps are fine in the background - but some that poll the Internet frequently really suck down the battery fast.

I found that the current version of Skype will drain my battery completely in the course of 6 hours even with the iPod Touch (4th gen in my case) turned "off".

I've made it a habbit to just close Skype (from the task switching bar) if I'm not going to be using it.

A lot of Apps are pretty new to iOS 4.1, so it will take developers a little while to make adjustments to handle battery life better.

(ps I love the Skype app by the way. I hope it gets a "backgrounded" battery update soon.)