Up until now... I've been an email sort of guy...
Not seeing the point of twitter at all. In fact I only signed up to get some status messages about when a couple of podcasts where being released.
But I've started playing with it and see its kind of fun. Mobilitysite even has its own twitter feed
Twitter / mobilitysite so you can get the latest headlines updated as they happen.
Anyway.. if you do twitter, whats the best way of doing it on a wm device?