http://www.dailydot.com/politics/nsa-backdoor-iphone-access-camera-mic-appelbaum/
You should read this:
http://www.osnews.com/story/27416/The_second_operating_system_hiding_in_every_mobile_phone
I suspect what they really compromised is the baseband OS, which sits below the phone OS. It would explain why it would have persistence qualities, stashing some binary where the OS can't even see it. We need open-source hardware verification and open OSes on our phones. Its becoming insane trying to trust any commercial hardware/software company now.
Yes the propriety baseband OS is also a risk; however the NSA back door applies to all IOS devices not just iPhones, so an iPad that does not have a cellular internet connection and consequently no baseband OS also has the same NSA back door. This would indicate that, this particular backdoor is IOS specific and that an Android device, particularly one that is rooted and has CyanogenMod http://www.cyanogenmod.org/ or Replicant http://replicant.us/ installed is going to way more resistant to NSA penetration. One free OS and one propriety OS is always going to be safer than two propriety OSs.
Edit: Blackberry being a Canadian company may not have an arrangement directly with the NSA, as has being suspected in the case of Apple; however it could have an arrangement with the Communications and Security Establishment Canada (CSEC). The latter agency shares data with the NSA as part of the "Five Eyes" co-operation. http://en.wikipedia.org/wiki/The_Technical_Cooperation_Program