hello there,
iam not one of the most active guys around , nor iam a contributor
however this topic got me interested , i have not read all the replies though but i have some opinions
i saw other groupware software , and *SOME* of them got more tools than collabtive does , however,
i think :
1- there should be a paid/premium/commercial releases that has :
1.A- better bug fixes on demand ( better support in other words
1.B- bundle it with the others services you got , like installation and so on
2- Integrate Collabtive into some famous CMS , the ones those has it all , like joomla,magento,wordpress.... , make a component or plugin , that way : ( i hope iam not in trouble by mentioning another OpenSource's project name

if it is some kind of advertising , please remove the brand/name )
2.A you reach more and more devels and users
2.B you don't have to worry about alot of the *TOOLS* that other groupware got , i know you guys might not a joomla guys or other cms but that would be awesome ( NO DOUBT )
2.C Maybe the API would be cool for writing plugins/modules , however 2.B would be more efficient and robust
Donations, are good for paying domains and cheap stuff ( annual stuff )
good luck , regards,
AAly