Read a blurb about this on PDAGeek.com. You can get more details here:

http://www.symbianone.com/news/122903gl_2.html

There's definately some workarounds for using this, and eventhough I've always wanted a chatboard-type keyboard for my 3650 I'm not sure if this is the one. Some sort of thumbboard would be more suitable I think...

So, who's going to be the 1st to try it? ;)