Since I got my hands on the T-Mobile G1 in 2008 I've been totally captivated by Android, in a large part due to it's open (-ish) nature and Linux base.
Alf for LOVEFiLM
Alf allows users to manage their LOVEFiLM DVD lists from their phones.
Download from Google Play (1.1MB, UK only)
Alf was created to fill another hole in Android's catalogue - an app to manage one's LOVEFiLM DVD rental list. Fortunately LOVEFiLM were happy to provide an API that developers could use to interface with their system.
A few months after Alf's release, LOVEFiLM released an official Android app, LOVEFiLM By Post. I continue to work on making Alf the best LOVEFiLM client for Android. Alf currently boasts support for a wide range of devices, from small-screened 1.6 phones through to the latest Jelly Bean-based tablets, and has been downloaded over 6,000 times..
Tweetabouts updates users' Twitter profile 'location' field with their current geographical location.
This is the first Android app I wrote and released, but has not been updated past Android 1.6.
This app is no longer supported nor maintained.
One of the most notable absences from the Android Market in 2009 was an app that could stream content from BBC iPlayer - something Apple users had been able to do for months. This was particularly frustrating, since there vere video streams available that Android was able to decode and play reasonably well, and they were being used by far less sophisticated phones. I was however able to identify the URLs for these streams, and combined with metadata available on the iPlayer web service, crafted together an app that provided a rough iPlayer experience on Android.
At its height, beebPlayer had been downloaded from Android Market over 200,000 times, and was in the top 10 apps list within the UK, such was the demand for iPlayer on Android.
I withdrew beebPlayer in May of 2010 at the request of the BBC.
The BBC have since released a fully-fledged iPlayer app for Android devices which offers a far superior experience.