SecuROM will be present, but "only to verify the game's executable and check the date." Tobey also noted that the company would abide by standard Games for Windows Live non-SSA guidelines, which allow up to 15 activations. Beyond that, you can reset them by calling Microsoft. This follows the implementation of other recent games, like Batman: Arkham Asylum.
While I understand the desire of developers and publishers to protect their livelihood, DRM-laden games are still cracked and readily available on most torrent trackers. Increasing the install cap to 15 is certainly an improvement, but I'm curious to know how many thefts are prevented as opposed to the number of frustrated paying customers.