Query string URLs are now a *feature* after so much mod_rewrite hassle to eliminate them.
Get Shortlink (with your own domain)
We all know how useful URL shorteners can be, especially for tweeting links. WordPress 2.9 gave you the ability to use the wp.me URL shortener. WordPress 3.0 takes this feature a step further by allowing you to get a shortlink for your post based on your own domain name. For example: http://mashable.com/?post=7127.
