Corporate and Consumer.
RIM dominates the enterprise/corporate market and as of recent has been trying to break into the consumer market.
Black berries where made for the corporate/work industry. Apple always has made consumer based products. So we are comparing apple to oranges.
It's like taking a car company that's focuses on building trucks and then comparing it to a car company that builds luxury cars.
They are completely different. That being said, when entering into a new market, for instance with RIM entering into the consumer market, it's going to take some time for RIM to gain market share.
Now, has RIM made some bad development platform decisions in their process? yes they have. But if you're going to compare RIM to consumer based companies, I think it's a little premature - give them another year or two.