Twitter or Pownce (or both?)

Yet again a 'new' Web 2.0 service has got off to a flying start. I am talking about Pownce (well I would 'talk' about it if I knew how to pronounce it). Anyway since the invites started flying around at the weekend, many of them on Twitter ironically, it has been amazing how popular it has become - well popular with the same group of early adopters that you would expect to jump on the bandwagon. I am guilty as charged - have been looking at it far too much over the weekend. The most impressive thing? It knocked the iPhone off the top of the "What do you think?" questions that came flying my way. So far I am impressed, especially with the grouping of friends into sets, which seems to be a feature missed by just about everyone I have spoken to. For me this is probably going to be the single most attractive feature. I can see a number of promotional benefits of Pownce, but somewhat ironically the sharing of files isn't high on my list of priorities. Twitter or Pownce? Already a frequently asked question, and probably inevitable that it will come down to that for many. Twitter has the simplicity and reliability (hard to imagine I know but currently Pownce's desktop application is as flakey as can be) and I love the way I can use it on the header on my blog. I would like to be able to set up a set in Pownce called twitter (which I have done) and to then send that Pownce Post (PP from no onwards I think) to my twitter account, and for that particular PP (so that would be a PPP) to show up in my header as it does now. Anyway if you want a Pownce friend go ahead and invite me. My name is Chris Marshall ........ and I am a Pownce addict! And let me know. If you had to chose right now would you go with Twitter or Pownce (or indeed both as I think I will be doing)?