I just had a "duh" moment...maybe it's already obvious to everyone but me: since iphone 3rd party apps are just web sites, most of them should be compatible with the N800! The biggest problem I've come across so far is that some of the "apps" I've tried are set up for vertical vs. horizontal viewing. I don't suppose anyone could come up with a hack to let the N800's view web sites rotated 90 degrees?