Well I just tested ioq3, not really much to notice... everything seems to work as in q3... possibly I am seeing really crazy FPS counts going up/down in less than a second. But that may be normal.
To see the skyboxes without the lines is totally awesome. It feels so right.
The downside, huge amounts of lagouts during the game. No idea what the code does, but this is a showstopper (literally). The game seems to load something and that total freezes the game for a fraction of a second. This gives the player a very bad feeling, because you never know when this will happen.
I compared the map svr_wb (see lvlworld.com) on vQ3 and ioq3 v1.36 (using the same .cfg), there are almost no such lags even in a space map like this, on the other hand tons of that in ioq3
Can it be that the changes made to ioq3 use more resources, and that that will be noticeable on slow systems like my P4 2.54 GHz (2 GB RAM) and ATi X800?
To me the fluid gameplay went from space age to stone age... (sorry about the sarcasm).
I'll be using ioq3 for screenshots of my skybox maps at least.