What's the best twitter/plurk/IM app(s) 4 blackberry?

I had to write a few lines about 30Threads - hellotxt.com/l/rUPd

Just got some treats from the neighborhood icecream truck!

Adding Facebook friends from the 30THREADS group

Just wrote about "Anthrax Investigation and Basic Lab Security" hellotxt.com/l/ue4Q

Finally playing w/my blackbry GPS- wow!better than I expected

Trying out IM+ for BlackBerry. Looks slick but can't see myself paying for it

So far- seeing lots 'o support 4 researchers & condemnation 4 activities after the UC-SC firebombs

Who orders a sandwich-wrap assortment for a working lunch w/cold seafood ones mixed in?! Stomach is tore up

trying to register for my industry's largest conference - and it's web registration page is down - wtf?!