I'm working with the Xumii crowd to carve our niche. It's a big space, and it's early days. A lot of people won't want to have additional social networks, but there is lots of room for niches and specialists, and also cross network plays. It's also important to remember that the USA is just one small part of the total social network opportunity and is generally behind Europe and Asia in mobile. - Mick Liubinskas from FriendFeed MT Plugin