The situation is tricky. It's hard to tell. There are some opportunities and there are some dangers.

It depends now on many factors. One of the most important is "how community will react". It might be hard to reconstruct the trust donors have put in us, and it's totally understandable. If nobody will want to take part in this project again, there is of course no reason to continue.

What can I say?
If someone really wants to, there is a Neo900 UG account that can be used to donate: http://neo900.org/donate - but we cannot promise anything right now. Maybe we'll end up refunding it again in two weeks. It's hard to tell anything for certain, only time will tell.

So if you want to support the project no matter how, just from the love of the idea, you're welcome to donate or to specify that account as a place where GDC should send its refund. Just keep in mind that anything can happen (well, anything that's reasonable - we definitely don't plan to take the money and disappear or anything shady like that. We just can't promise anything right now, including that the project won't be canceled soon in a worst-case scenario).

Such donations would help to cover some expenses of Neo900 UG, like tax advisors and lawyers. AFAIK those (on UG side) weren't covered from donations yet. Therefore some amount, even small one, residing safely on UG account could indeed be a huge help.

The only thing we can promise is that in case we actually find some solution and project proceeds successfully, we'll definitely take all donations into account in a fair way, like we always intended to do, even if technically donations are "non-refundable" now and don't promise anything in return in a legally binding way.