If you use multiple micro blogging services like twitter, pownce, plurk etc then updating each of these sites will take time and you can’t one desktop client for each app. Updating.me is a new service that helps to update all your micro-blogging services at once.
Updating.me has support for the popular micro blogging sites and Facebook. The supported sites list include Facebook, Friendfeed, Identi.ca, Jaiku, Koornk, Plurk, Pownce, Rejaw, TwitArmy and Twitter.
Another great feature of the service it offers an Adobe AIR Application for the convenience of updating your status from your desktop. It also allows you to post images along with text messages, to post images you just have to drag and drop images from your desktop.
Overall this is a usefull service with a desktop client and timeline feature on the eb interface, but competitors like Ping.fm and HelloTxt support more services. But according to their site support for other services will come in the near feature, this is must to stay in the competition for a service like this.
Updating.me is currently in beta you can request an invite here.