After acquiring Tweetie on iPhone and launching an app for BlackBerry, Twitter today announced the availability of their official app for Android.

The app, which is only available for devices running Android 2.1 or later aims to make full use of the sharing feature of Android platform.

Apart from providing a widget that will show your Twiter timeline on the homscreen, it also integrates your friend’s latest Tweets in the phonebook’s QuickContact bar.

And of course, like any other Twitter app on Android you can share links and pictures from other apps using the ‘share’ option. It can also show Tweets on Google Maps (as shown in this screenshot).

Twitter says that this is just the beginning and there is much more to come on Android. Well, we cannot wait to give this app a quick spin on our Milestone even as we wait for HTC to provide the promised update for the Hero.

Hey HTC, we are now running out of reasons why it is a good time to update the Hero. Better release it before we junk our Hero in the bin and pick up a non-HTC Android smartphone. Are you listening?