[mikl]

Yammer.com? Now there’s an unhelpful endorsement. It’s been a while since I used Yammer, but I remember its UI as pretty damn awful.

[cjsuk]

Plus like all MSFT frameworks, it'll be abandoned about 3 minutes after it is released.

Citations for the downvoters: silverlight, lightswitch, Velocity, AppFabric, Windows Workflow, half of WCF, ...

[mariusmg]

half of WCF

Why just half ? :)

[madspindel]

It's one of the slowest UIs I know about. We also have a Yammer Embed on our Intranet and it's slow and buggy as well.