Nokia will never unlock the bootloaders; I was waiting for Nokia to do so, but purchasing a new phone all together is a better option. I purchased an iPhone 4s last week.
I'll be honest with you, Nokia S^3 devices are the best around in hardware, and if you could boot Android on that, then I'd purchase a Nokia E7. I'm still on the boat of hoping, but I don't think they will be released.
