it may depend on which one becomes the most reliable...

you never know if twitter will go down or not... for me, its between plurk and friendfeed.

NTM I like the interface of commenting on plurks

this one is slick - but I don't know that it will be functional for me.

If there's no SMS component, and no RSS, then off-web Plurking is a no-go for me.

I'm with you on the off-web, though I'm hoping that we get a solution for off-web microblogging on any platform soon...

replied best here: www.plurk.com/p/1sij