Yes a 1 for 10 would bring us down to those levels. When you bring the Outstanding and the Authorized shares down together, shareholders do not get hurt because you still maintain the % of ownership after the RS. If the R/S only brings down the outstanding shares, people will run for the exits because that will leave plenty of authorized shares to dilute.
During the October CC Joel discussed a hopeful long term plan to get shares down to around a 1 billion with the possibility of using a 1 for 3 or 1 for 4 R/S. That would be bringing down both OS and AS. Shareholder friendly. He said he hoped that might be used to up list. That was years down the road and may never need to do that