Apple iPhone

I'm finding with doing periodic email checks, a few text messages, a few voice mails and a little screwing around I'm getting a little under a day's worth...or about 18 hours (80% of the time in standby mode)...and I'm not doing anything intensive at all. Please let me know what you're getting because I'm not too sure that this device is living up to the battery life claims that Apple recently announced. Thanks!