I think this was inevitable, as there probably isn’t enough juice in the micro-blogging arena to support two separate platforms. But it’s still a shame. Pownce is/was the more elegant of the two, and facilitated media sharing in a very fun and effective way. I discovered some good music via Pownce, and I shared some good music (and purchase links) with my Pownce “friends.” For me, the media sharing element made the Pownce experience seem more conversational. I always felt like there were useful things to be found via my Pownce page. Twitter just feels like a shared grafitti board- there’s something to be said for that, but it lacks depth.
I’ve never been much of a IM user or micro-blogger, but of all the applications I tried, I found Pownce to be the most compelling.
So long, Pownce.