After several months of work the community GameStick server has a HTML interface that lets you browse all the 188 games available for the GameStick.
On a desktop browser, the UI looks like the original marmalade-based GameStick interface. Use a smart phone or tablet device and the website looks a like a typical modern mobile web page.
The web interface has a couple of improvements over the old UI: You may filter games by genre and features - it's easy to find games for 2 players for some couch co-op, or platformer or racing games.