Yes, 0.2.1 is the Spyrus version. I suspect there will be a 0.3.0 in a couple of days.
Only critical issue with Spyrus is that you have Poll Book 3-13-7-2 installed somewhere so you can create the master voter cards. As for GEMS and the Ballot Station, that's up to your project manager. The Spyrus cards should be backwards compatible, but then I wouldn't want to rely on "should" until your PM finishes testing the complete system and is happy with the results.