I tried out the demo and it works but it doesn't seem to account for more recent versions of Tiled. At least, the test map I made wouldn't load because the format is quite different. It's easy enough to adapt but I thought that might be noteworthy.
Also, the demo simply draws some tiles. It doesn't demonstrate traversing across a larger map (something that might take up several screens), nor ways to interact with the Tiled data (unless I missed that).
It would be nice to get a little more depth to that demo. I assume collisions would be straight-forward. Does Oxygine have built-in features for cameras?