0.7, 0.8 roadmaps

[tsuraan <ts...@gmail.com>]

Is there a document anywhere with estimated release dates for the 0.7
and 0.8 versions of cassandra?  I've seen
https://issues.apache.org/jira/browse/CASSANDRA/fixforversion/12314533,
which indicates progress towards 0.7, but I haven't had much luck with
finding date estimates.  I'm especially interested in the new SSTable
format (0.8 bug, #674), since I'm not really comfortable deploying
something where the on-disk format isn't entirely decided yet.
General guesses would be great, like "0.8 will hopefully be in alpha
during the end of 2010", or some sort of general time like that.
Thanks for any info you can provide!