an Apple iPhone/iPod as simple as possible?

What about an Apple mobile phone, as simple as possible? Read only! Only for voice telephony, music listening (iPod) and light reading (SMS, calendar, contacts, ToDos, ev. email, web, eBooks) a la iPod, size and look and UI identical to iPod mini. Usable as a wireless UMTS/GPRS modem via Bluetooth. All data entry except phone numbers and eventually SMS, which work through a slide out number keypad a la MDA3 goes through extra computer (PowerBook, iBook, iBook mini, PDA (Palm, PocketPC...) or real keyboard via Bluetooth...