Hmmm well had a few phones in a bit more than a decade((around 1998 or so iirc)5110 - 6 years, 5140i, N95(last 18 months))

As a phone the one I liked most was the 5110... The thing can still run a week on the original battery. So basically I was looking for a mobile computer that had the basic features of the 5110 for the phone. And with the N900 I found that

I'm disapointed though that the mail client is such a poor thing.