MultiTask affect on battery life?

Of course, running apps in the background will use up the battery no matter what.

Another example of this would be the iOS 4 multitasking being on iOS devices that doesn't have it by default. They just don't have the hardware to support it, which is why it results in so many crashes and slow performance.

I've had my Impression for over a year (and the same battery) but don't multi-task all that much (for long periods of time). I noticed that my battery is losing a charge faster now. It's kind of odd though what's going on. I THINK it started happening after I installed the latest version of Snaptu. The battery will be full. I'll load and use Snaptu some - check Twitter and Facebook quick, read an article or two and then my battery will go down to 2 bars from 4. I'll try using Snaptu again and then it'll flash dead battery. After I don't use Snaptu or whatever for a while it'll say I have two bars again. I'm wondering if it's Snaptu or if I need a new battery.