I read about this on the Yahoo forums (there was a thread around a month or so ago).
If you check the Eyeon web site here:
http://www.eyeonline.com/buying/index.html
Then you'll see under Digital Fusion that the dongle upgrade is available for US$95.
License transfer costs US$195.00 if you elect to sell your copy (although I suspect that this will probably only be enforcable once you've registered with the Eyeon website to get the license download).
I'd double check with Eyeon that the Lightwave bundle is covered by this dongle upgrade still however, as they may have stopped it because of people buying the dongle and then selling on eBay...