Seesmic might not be the best Twitter client, but it is the first to support the new lists feature. Users who sign up to Seesmic's mailing list can get access to the latest beta version of the Adobe AIR-based desktop client, including lists. List support is not complete yet: you can view your own lists and add people to them, but you can't see which lists have added you. It looks like you can create a new list, but you can't, yet -- if you check Twitter's web interface, you'll see your list isn't really there. These features are coming sooner than later, though, and this limited support is enough for Seesmic to call "first!"

I like the idea of lists in a Twitter client, but Seesmic really seems to be taking the kitchen sink approach to development. Last time we wrote about it, Facebook Page integration had just been added. There's a good chance you'll find one killer feature in Seesmic, whether it's pages, lists, or something else, but there'll be a bunch of other features that you don't need. Seesmic's strength is in being the first or only client to implement some of its features, but I think it's spreading a little thin in trying to be a top-flight client for both Twitter and Facebook.

Meanwhile, Seesmic's competitor in the "widescreen," AIR-based Twitter arena, Tweetdeck, is lagging behind on lists. Techcrunch reports that Tweetdeck plans to introduce the feature soon, though, with "extensive" integration.

[via ReadWriteWeb]