David Pick, a senior correspondent for Eurobasket.com, tweeted a couple of days ago that Nolan has received partially guaranteed offers from Chicago and OKC. I assume "partially guaranteed" could mean a number of things ("we'll give you lunch money during training camp"), but still sounds promising.
There was another tweet that Ainge was at Nolan's semifinal game scouting a big guy, too, so maybe Nolan could catch the Celtics' eye. Their coach might already know who Nolan is (though he didn't shoot great from the field, he averaged 18.5 in two games against Butler).
Oh, right, and Nolan was playing for Boston's summer league team last summer and slated to go to their training camp in the fall before signing with Cedevita Zagreb. So they NOHIMMMMMM.
ETA: Fuck, rowe already beat me to it and posted it on twitter.. But I spent like at least 3 minutes tracking down several tweets after reading a DBR post...lol.