I was kinda enthusiastic about the iPhone…then I found out from Macintouch that it’s a closed, locked down unit. Forget about installing software to use it as an e-book reader, or reading Word documents or PDFs. You’re not going to be using it to give business presentations. Forget about downloading music via the WiFi connection. Forget about writing your own neat applications and running them. There’s no Xcode iPhone developer kit, and Apple apparently has no plans to produce one for public use.