I'm not apple hating, I get along with apple. Its just that letter, while the points he/she made are accurate, reads like an applephanboi. If its an open letter, reveal the name. Otherwise its just propaganda for the sake on shining on apple.
Now, if RIM has any business brain cells left they should sell their tech (email) to the highest bidder and reap $$$ from licensing. They, IMO, are too late for devices to save their ass. One thing RIM does and still does better than anyone else is email. So, sell the tech, remain alive financially, take a couple of years and to some R&D and maybe then come out with a competing product.
This right here can never happen. I don't really want to get into details, but just think how far along the Google/Apple/MS ecosystem will be. Google is developing it's own music, social network, and it already has email. Apple has music down, has apps down, has the whole ecosystem down (their devices connect to everything ever). MS is just starting, but in a few years, they can be a huge player if people latch on like they should because it definitely is an awesome OS.
Regardless, if you leave the game for a few years and just try and do R&D, you're going to fail. Everyone will have moved onto what they've already purchased. They'll have 500$ invested in apps on their iPhone over that few year absence while the BB users are... left dwindling away..
Anyway, that's just my view of what would happen if RIM stepped out. As a company, you have to stay in the game the entire time whilst trying to do R&D. Apple does it perfectly. They release 1 device every year. Think about it.. 1 device. That 1 device sells to a shit ton of people. That 1 device has made them the top manufacturer (if I'm not mistaken). They build the device and the software in house, and it comes out and people love it.
Android devices.... are a plethora, and I hate to say it, but I feel as though they're throw away devices. Sure, one might be better than the other technical-wise, but it's still a toss up to whether it will sell well and have the community latch onto it. Think about the OG Droid. That guy was the first HUGE Android phone. Everyone I knew had it or an iPhone. Every developer out there LOVED that phone and the community was enormous (probably extremely close to the iPhone at one point). Then they released.... 12239105945603690436 devices and then you have only a handful of developers (I'm speaking of those in the community) working on that one phone to get it to do what you want, etc..
RIM... well, RIM doesn't have that at all. They have the OS/hardware like Apple, but it's so subpar to almost everyone anymore. They definitely lost most of their community (in my eyes). They're losing their main business which is the corporate/business world... to Android/iOS. I just honestly cannot see them pick it up anymore.
It feels like what happened to Palm will happen to RIM. They'll come out with a killer OS (QNX-based) and then release mediocre hardware/the same they've been delivering forever, and just have to sell off to someone and become absorbed.