I just started playing games on my EVO and I think those apps use a little more battery juice in my opinion. Now I see why people complain, but I'm not a gamer so it doesn't bother me one bit. Just play the game with the phone plugged into the wall outlet when the battery gets low.
I'm just saying you have to admit a 1730 mah battery compared to a 1500 mah battery is a NICE improvement. And if HTC would have placed a 1750 mah battery in the HTC EVO 4G they would not have seen a lot of initial complaints due to people not understanding how to tweak apps on their phone. Anyway, the phone would still bleed battery if you don't tweak it right.
For me all my apps download once a day or they are set to download manually. If I need weather I don't use the weather service connected to the app. I need to see the METAR/TAF for weather accuracy and a radar. The animations on the homescreen don't mean jack to me. The METAR/TAF gives me the times of the day for the weather. I use aviationweather.gov and since we have flash I can see the radar for all over the US in conjunction with the METAR/TAF.