@imperiallight - yes on both questions, however openwatch supports only sms preview.

@rnb89 - I doubt if openwatch will fully work with SE MW600, I don't know mw600 api but I think it shouldn't be too hard to make something workable.
Anyway, I have Classic version because I think looks best.

I've made my own program for my SE MBW-150 in ruby (I precompiled ruby bluetooth module for this - if anyone is interested I can share) so I have full control over phone from my watch (loads playlists into mediaplayer with boosted fm transmitter, obviously phone/sms stuff and anything that comes to my mind - it's so easy to implement new stuff with ruby).