At this point, it's probably too late to adopt Android. It'd probably take as long or longer to come out with an Android OS (with all their apps) as it would to just finish BB10 now.
The point of Android OS isn't to save money, it's to win customers. I'm not 100% sure why people prefer Android or iOS to BBX, but I think it's partly just psychological. Whatever the reason is, I think Samsung and Apple are pretty happy with RIM and Nokia using a different (even if arguably superior) OS which don't sell very well.
RIM has over 1B cash, has about 16,500 (soon 11,500) employees. Most of their loss was from writedowns, so their burn rate might not be too bad. They might have time to switch to Android. They can't afford BB10 to flop, but I'm pretty sure it will (even if it's actually a great OS).
If they can loose some heads, and switch to Android, they might generate some confidence which could help them get funding. An Android phone with a competitive advantage (in some niches) over Samsung is something I'd bet on. A phone with a new OS in 2013 is not.
Revolutionary things don't begin with poor management and they sure don't begin after mass layoffs. Besides, they haven't just lost 5,000; maybe they did today but a bunch more will quit voluntarily in the next month (now that this huge red flag has been waved in front of them by management).
The people left over will not be willing to bust their asses to make great products for 2013, even if they're capable of doing so. They will be exercising their skills at printing résumés. What is RIM going to do: give them raises, while they're losing money? More like their Office Space bosses will tell them how greeaaaaaat it would be for them to start coming in on Saturdays. No, RIM has lost whatever chance it had to try something new. The next series of moves will all be drastic and they'll have only golden parachutes in mind.
"I'm not 100% sure why people prefer Android or iOS to BBX, but I think it's partly just psychological."
People prefer software that has existed for several years to software that might never be released. This isn't psychological, it's the same reason cats are a more popular pet than unicorns.
I don't think it's psychological. I think both Android and iOS have better hardware that you can do more with. Beyond just apps - I can actually usefully browse websites on Android or IOS; when I tried on a Blackberry a few years ago, it was absolute torture. Bad web browser that didn't render sites well with a stupid trackball instead of a touch screen. I loved the e-mail, but e-mail was the only thing it did well. Maybe they have improved in the past few years, but they're not getting another chance from me, because meanwhile Android's web browser, driving directions, and Swype have -exceeded- my expectations.
Disclaimer: I worked on the WebKit team at RIM. Starting in BB6 (two years ago) Blackberry shipped with a WebKit browser which was leagues better than the old Java browser. Maybe this is a marketing problem for RIM as in just about every RIM thread on Hacker News someone complains about their old Java browser not knowing that current RIM OS's ship with WebKit.
BB6 and later use webkit which is a huge step in the right direction. Judging from the scores on html5test.com, they are taking the browser seriously these days.
OTOH, the window for that might have closed. If you believe the rumors (and the PDK announcement certainly points in this direction) there's a fleet of stock Android devices coming this fall.
