I remember the 3650. How that keypad ever got out of the R&D labs I'll never know, but wasn't there eventually an updated version released with a workable more standard T9 shape kb?
It really is a solid handset. Last fall when my N95-4 was being repaired, I brought the E70 out of retirement. The keyboard is great. It's too bad it just doesn't have enough RAM for Web browsing.