Yes, the databases have been transferred to Ancestry.com. GeneTree will not be continuing; they have stopped taking orders and in the near future www.genetree.com will be taken down. There are not plans to automatically 'convert' GeneTree accounts into Ancestry.com accounts, so GeneTree customers will need to move their information over to Ancestry on an individual basis.
As far as the autosomal database is concerned, our autosomal tests were generated with older technology, making them incompatible with current industry standards. Therefore, they are not included in the autosomal service offered by AncestryDNA. We also don't plan on making them available via smgf.org.
As of today, 1 June 2012, the Y DNA and mtDNA databases are still available at the SMGF site: http://smgf.org/ If you have tested I suggest you go and download your results and your matches. It is my understanding that people will be able to remove their results from the Ancestry.com databases if they so desire.