Greg Peek has a fix for the Longbikes Slipstream Kick Stand problem discussed in Slipstream Kick Stand Update.
There may be more but this is what I’ve found on the Longbikes web site:
Product upgrade announcement: Slipstream owners, if you have had problems with your ESGE 2 leg kickstand not staying tight to the frame, I finally made [...]
Read the complete post at http://ebent.wordpress.com/2008/03/11/slipstream-kick-stand-fix/