no, we only support wx 2.6.x for the moment.
The thing is it seems a lot a code changes might be needed. I think we shall do them one by one.
But the big issue is : we need to make sure everything still works with 2.6x.
On windows it is very simple, we can provide a new wx dll and everybody code use new nightlies once those ore build against wx 2.8.
But on linux is a pain the .. to upgrade such a thing as wx, so I think only the next round of distributions will ship with wx 2.8.
And we also need to see, if wx 2.8 fixes bugs, and not just bring new ones [like wx 2.6.x brought several new ones !!!].