It seems that Seesmic has spawned a new rivalry. Seesmic launched Seesmic Desktop yesterday that offers updates via Twitter and Facebook. For Tweetdeck users its look, feel and function will be all-too familiar.

It first blush it seems to basically offer all the bells and whistles that Tweetdeck already offers, just with some added flair via cool color changes and and a richer user interface.

As a diehard Tweetdeck fan/user I just couldn’t rationalize its use.

All you Tweetdeck users out there.. what do you think?