First off, Lou likes to pile up the minor RFA signings and announce them all at once. Most years, Loktionov, Josefson, Tedenby, Sislo, Pesonen, etc. would all be 'signed' on the same day.
Tedenby on a one-way is tremendously confusing. Granted, his QO would've been $962,000 with some much lower amount on a two-way contract, but my guess is either that Tedenby said he was going to Russia/Sweden if he didn't get a one-way, or that NJ figures he's learned enough in the minors and that he can play here as a 13th forward, and that this will save them money. Either way, doesn't make much sense.