Seesmic, the popular Twitter, Facebook and Buzz client previously available for Windows, Web, Android, Blackberry, and a whole pile of other platforms, has recently made its iPhone application available.

Many questioned whether there would be any point in Seesmic releasing an iPhone app, with the recent news and release of Twitter for iPhone, a rebrand of the extremely popular Tweetie application.

But surprisingly, the application has received critical acclaim.

By implementing more than one platform, and combining this with an innovative multi-panel interface for quick and easy navigation, Seesmic for iPhone is similarly pitched to Seesmic for Android – for the power users who want to get the most out of their device while they’re on the go.

Check out some screenshots of Seesmic for iPhone in action below.

One of my favourite features of the recently-launched Tweetie 2 (as a geeky developer, at least) is the ability to use your own custom URL shortening service when you shrink the URLs in your tweets.

Fortunately, the API for our short URL service Retwt.me is out-of-the-box compatible with Tweetie 2. Here’s how to enable Retwt.me for shortening on your iPhone.

You may have seen me bemoaning using Twitter on my iPhone recently.

This is for two reasons. First of all, it is an original iPhone, and is therefore terrible. Second of all, I was using TweetDeck, which seems to be the only app in the store still free and not completely stuffed with ads – and also the slowest and most bloated.

Incidentally, no-one seems to have got syncing setup between platforms – iPhone, desktop, web etc. – sorted in a Twitter app. It can’t be that hard, surely? @loic hinted this may be coming to Seesmic at his PDC announcement, so let’s hope it’s soon.

Back to the job at hand – Tweetie 2. I have used this for about 20 minutes, and it’s a masterpiece. Here’s why.