anyone see improvement over battery life? I havw been using this device for about 4 hours now non stop (lol yes nonstop) and I got 1/2 bar left. here what i've been running:

8 windows: 2 web, 1 music playing through speaker nonstop at max volume, 1 app manager been installing apps here and there including the new firmware, 4 conversation texting moderately. also im continously using 3g and bluetooth is enabled.