This app has some bugs but it's killer feature is being able to remotely unlock the doors of a zipcar with your iPhone. It's like magic. Also honking the horn remotely to find the car in the lot is pretty handy/fun.
handy if you need to manage multiple twitter accounts. ie managing one twitter account for your company and one personal life (or more)... this is how i manage twitter on my phone and on the desktop...
andreah
we had Josh in for a Q&A right after we screened the doc as part of Internet Week NYC. he is one of those people that blows your mind, crazy brilliant & waaay ahead of his time (but not without his faults as he readily admits). video from the event: http://vimeo.com/12633831
calebrown
Just watched this recently as well, so crazy!