I sent an e-mail to Peter Reich about the rear-wheel alignment problem discussed earlier in this thread. Here is his reply

After inspecting a new bike yesterday, I found that while the current batch of frames have a little wider rear dropout spacing than the first run, the rear wheel on the bike I checked was still fitted with a 130mm rear axle, but no spacers. When the rear QR is closed, the dropouts are compressed together a bit, causing the axle to shift if you're not carefull. A 2mm spacer on either side seems to make everything happy again- I passed my finding on to Karl and the factory in Scranton.

-G