Dschuh's dashboard

Buying storage, doesn't really solve the dilemma for me.
If I could FORCE/ASSUME ownership of uploaded files into a group - that would work for me.
note - this is a private group.

This would be not very convenient, security-wise... who should be responsible for files that get uploaded then if the owner has no rights to control his own files?

A possible solution could be that members of a group could donate some of their storage space permanently to a pool for the group, but this could still be exploited (I see many 1 GB donations coming up...)

But I think you touch a valid point: it's hard for people at the moment to upload files to a group if they lack storage space, since you don't have much control how much gets stored on your storage node and who accepts your invitations.

This will however not last very long any more, since certainly in just a few months you will be able to buy storage as well for (I hope) a rather low price.

Would Wuala later have the function to buy group space which can be used by every member?
E.g. a group has bought 20GB - every User can upp data unless the group space is full - when a user leave the group his upps in the group space wouldn't be erased, but he isn't allowed to use them anymore unless he go back into the group

No.

Because:
What happens if someone leaves the group?
Why should I loose my storage space just because I'm in a group?

You get at least 16 GB for free as a new user if you do the survey and you can invite others AND trade storage after a few days - space is not really a big issue in Wuala imho.