mflow, a site to watch.

curl --head mflow.com
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 14979
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNetMvc-Version: 2.0
X-AspNet-Version: 2.0.50727
X-Powered-By: ASP.NET
Date: Sat, 03 Apr 2010 09:10:19 GMT

Looks like itunes meets twitter here. Found out about it from a tweet from someone that I'm following. UK-based.