Web surfing in EVDO area was fast. WiFi was faster.
Dunno bout myspace but Facebook was OK.
I charged the Hero 100% full when I left the house at 10:00AM. Made about 30 mins of call throughout the day. Surfed the web about 30 minutes EVDO total. Scanned about 20 bar codes addtionally(EVDO). I WiFi'd about 30 minutes. I had GPS location services on all day and BT on about 4 hours - forgot to turn ot off. I had push email on all day. Had dinner at Spaggetti Factory @ 9:00PM. Finished dinner @ 11:00PM waiting to P/U my daughter from Homecomming dance. I got a RED Low Battery message @ about 11:45PM So it lasted a full day. But is that typical for the services I used?? Dunno. I'm ok with it. But the Hero is definately a once a day charger device.