Here are some FAQ's about the upgrade:
http://www.sheilawilliams.com/eq3files/EQ6Upgrade.html
Here are the new features:
http://www.quiltbus.com/EQ6.htm
Here is one bloggers comments about the activation limits and the responses she received:
http://judylaquidara.blogspot.com/20...=1198978680000
Here is more about when you need to use an activation:
http://www.electricquilt.com/Shop/EQ...ctivations.asp
As I understand it, if you explain to EQ why you want/need a fifth activation, they may or may not charge you for it. It is not cast in stone that you have to buy the software all over again. According to their website: "You can activate EQ6 four (4) times without contact to our technical support group. After that, you will have to contact us specifying the reason for an additional activation. Each request will be evaluated on a case by case basis when the need arises."