Fair enough re: Adobe AIR and preference. I guess the question was more "I don't see what it offers me that I can't get from going to the website, other than I don't have to go to the website."
Exactly, that's the main advantage of using a Twitter client, not having to use your web browser every time.
Of course depending on the client itself the advantages can be multiple, for example Tweetie allows you so set a global shortcut that will pop up a tiny window to type your twit on the fly, very nice.
Other things include a decent conversation view for Direct Messages, which the Twitter website doesn't seem to consider a feature worthy of better design and faster Twitter searches from within the client.
I mean, I'm using tweetdeck because seeing one solitary column is a pain in my ass. I use twitter as part of my job (follow firm updates and news), which means I have a crap ton of updates - a single column means I'm scrolling for hours, as opposed to being able to find what I want easily. Now, I could filter by author, but that means I have go and select them every time and that's inconvenient.
Filters are a big thing missing from Tweetie for Mac that his little brother on the iPhone sports. Hopefully version 2 will fix this.
It could be that I'm stuck with tweetdeck as it's the only program that has the functionality I'm looking for. Not knocking tweetie, I'm sure it's great for what it does! Just doesn't seem to be what I'm looking to use.
Probably yes, maybe when version 2 comes around some of your woes will be fixed and then Tweetie will have a chance but from what I understand right now you need the powerhouse that is Tweetdeck.