I want to purchase a license right now but I noticed hmp updates each year. 2009 was released in mid January so should I just wait to get it on January to catch the 2010 version? I also tried the twitter coupon but it didn't work.

Forgot to ask, I run hmp on my desktop and sometimes i need it for my virtual machine, i don't need to use it on my desktop when i use it on my vm so can i deactivate/activate back and forth?

The Twitter coupon is case sensitive. make sure the code word is in all CAPS. If that doesn't work, then write to staff@hide-my-ip.com and we'll provide an alternate discount for you as a Twitter follower.
http://www.twitter.com/hidemyip

If last year's policy is the same, then anyone who purchases Hide My IP 2009 within 30 days of the release of Hide My IP 2010 will receive a free software upgrade to the 2010 version.

The proper way to transfer a software/key code is to uninstall the software from the first computer; reboot that computer then install it on the 2nd computer.

There is a 3 re-install limitation in a 90 day period. If you exceed that reinstall number, write to staff@hide-my-ip.com to ask if they'll reset the code for you.