There are tons and tons of iPhone rumors out there and as usual, we always say take these rumors with a proverbial grain of salt. Don't get burned like some other folks did (well... we did too... sorta) see iPhone Rumors - Who can you Trust?
Here are a few around the net of interest if you want to speculate, some more plausible than others.
Apple may turn iPods, iPhones into wireless iTunes remotes
Apple working on dynamic lyrics display for iPods and iPhones
