Long time 9000 user, jumped right away to 9800.
Initially it was hard to get used to the miniature keyboard (compared to 9000). But once you get used to it -- its no big deal. Atleast I have adapted to it -- and touch keyboard is good too.
Memory wise its huge -- from about 10-20MB free on 9000 to close to 300MB free.
Everything about Torch is good when compared to 9000. I just don't like that some application are not yet available for Torch -- so either you end up installing Storm version or just can't install it.
Hope it helps!