Yes, N900 is very good now. Even the Milestone 2 with keyboard and 3.7" screen, I feel N900 is much better. For Nokia E7-00, it is too big, and the keyboard feeling is not good. The "touch and feel" of the keys on E7-00 is not good.
My dream machine is a N900 basically keeping a large part of the current design, with a bigger but resistive touch screen. 4" is suffice. Preferably keeping the same keyboard keys touch and feel, add a row of keys to type symbols and a ESC key .
I tried many devices like E7-00, Milestone 1 &2, Sony Xperia with keyboard, ... none of them give me the pleasant feeling of the N900 keyboard.
I just type very *fast and blindly* with N900 and seems no similar products on the market!