Python 3.0 has many bugs which results in corrupted data. It should never ever hit unstable. Most bugs should be fixed in 3.0.1 It will be useful to have it in experimental to port packages to python3k. But it would also be nice to have python2.6 so we can do some preporting work with `python2.6 -3 myscript.py` (would also close bug 502235)