it didn't improve.  it is bad. meanwhile, you can explore from http://code.google.com/p/google-summer-of-code-2007-p9/
(Downloads and Links, esp the blog) to get some idea.  one project is missing from Downloads, i see.
briefly, the inferno-related ones are being incorporated into the distribution,
sometimes causing big changes.
(one includes plan 9 components to be submitted as patches.)

possibly students or mentors can comment on the precise status of others.

many of the projects were arguably too big for a summer or just too hard
(qemu's implementation in particular is rather shall we say challenging), BUT
strangely, many of those were completed, and some of the simpler, more
manageable  ones failed (and some of those were surprising).

i'd say more but this is too tedious at the moment.
traceroute suggests roadworks in DFW area, severe delays possible.