Samsung is known for pioneering Swype in its own and Android smartphones. Its an efficient way to do keyboard input. On my Samsung Focus S, is there anyway to enable a Swype keyboard?
At this time there is no official* way to enable Swype on any Windows Device. There is a UserVoice set up. Add the suggestion there, and just maybe it will come in future version.
* It is possible some homebrew way exists, but I imagine you need to have your device rooted and unlocked for it to work. I just don't know of any
No, currently it is not possible to change the SIP (Software Input Panel, or on screen keyboard) in any way on Windows Phone 7. This means: no Swype, unless Microsoft adds it (or a way to customize SIPs) to any next version.