...configuration or preferences menu with control sensitivity. This would include movement speed and mouse rotation.
User preferences, are already on the list. no rendering when there's no lights
Why? The reason you can render when there are no lights is that you can illuminate everything by indirect light. Or are you saying it doesn't render with no lights? one more thing I would like to see is to be able to drag-select some things in the scene and only quickrender selected
On the list. I would very much like to retain all the current normals information as well as being able to specify exactly which uv channel and texture number it is exported with - for example, lightmap is exported on uv channel 2, texture id 5...
Normals, are exported. Currently lightmaps are using uv channel 2, and texture layer 2. But there is no reason, you shouldn't be able to configure it on export...Might look different afterwards though... What GUI did you use?
homegrown, might release it some day :) (I tried using BlitzUI, but I needed a bunch of special stuff, so I ended up writing my own (2 or 3 times actually :)) The only minor complaint I would have is that you can't undo paint strokes when painting directly on a lightmap
on the list :) How much is the full version likely to cost?
This has not yet been finally decided. Edit - another slight niggle - if I select an object, and then go into paint mode with the object still selected - it seems random what parts of the scene you can paint and what parts you can't. I would expect to be only be able to paint the selected object.
The painting system will improve :) You will also be able to hide models, so that you can paint behind them.