It appears that the Android Market has been updated on Xperia handsets which adds a link to Sony Ericsson apps. The update doesn’t actually appear to be a market update however, as there wasn’t a notification and uninstalling any Market updates, does not revert the Market to how it was.
The new market sees the “My App” icon replaced with a phone icon and the words Sony Ericsson. Clicking on this will show you various Sony Ericcson apps, like Xperia Hot Shots, or Timescape extensions and also apps supported by your handset, such as FourSquare, TweetDeck, SwiftKey Keyboard and many more. For those who use the my apps icon frequently, you will now need to press the menu icon and select “my apps” that way to view what you currently have downloaded on your handset.
This update has been seen on the Xperia Play, Xperia Arc and Xperia X10 in the UK. Let us know in the comments if you’ve also noticed this change on other handsets or other regions.
Update: Sony Ericsson have posted on their product blog to confirm the addition of the “Sony Ericsson Channel” within the Android Market, meaning it should appear on all Xperia handsets running Android in all regions. Thanks for the comments as well guys.