Granted, today was a light day. But this is my third Android phone (Hero, Evo4G), and I couldn't ever expect to get 24 hours of service even if the phone was sleeping the entire time.
Today I used it as a phone and did some email, surfing news sites, weather radar (it DOES rain in California) and light usage for me. Still, look at the results of nearly 24 hours without a charge:
(Some people get concerned about the OS usage. I think it just reflects light usage because not a whole lot else was using the battery.) EDIT: I had about 48% remaining battery after nearly 24 hours of usage.