Ummm, did you actually read what you posted? It says nothing about Blackberry phones continuing to have Flash, only the lamentable PlayBook. As far as I know, Blackberry phones have never had Flash; they would have to at least wait until the BBX operating system arrives next year. [Edit: my mistake, they do have Flash, I got it mixed up with Walt Mossberg saying that the PlayBook was the first satisfactory mobile Flash experience.]
Like most of what RIM seems to have done for the past two years, this just reeks of desperation rather than genius or suicide. It feels like RIM is just pouring resources into any marketing bulletpoint they can cling to, in the face of relentless competition from Apple's iPad (and now also the Kindle Fire which is killing PlayBook on value). At least they have done a much better job of staying afloat than Nokia: both companies were slow to acknowledge the disruption caused by the iPhone, and are now suffering for it.
Without Adobe's backing, I expect RIM's fork of Flash will shortly become obsolete (Adobe will march on to Flash 12, while mobile Flash is left behind). Ubiquity was always the main selling point of Flash: something like 98% of all computers had it. As the world continues its transition to mobile computing, Flash has already lost that edge and Adobe is finally conceding. Just as no reputable website depends on Internet Explorer today, the same thing has been happening to Flash since 2007 (more slowly, I think, because it genuinely takes more skill to replace).
