Member Exclusive: Need An Alternative To My IPhone: I NEED ONLY PDA

My needs are 99% PDA, and if Sony still made Palm OS PDAs, I'd get one. I bought iPhone because I needed a new PDA and it seemed the best fit.

What other devices are people happy with the PDA function of i.e. easy to use.

I suppose I should just use paper, but that has limitations that I ha...