"RIM and Apple are much, much stronger than Nokia in the smartphone market"
That's a bit silly. As of Q4 2007 Nokia has 52.9% of market share for smartphones, part of the 65% for Symbian. RIM has 11.4% and Apple has 6.5% (impressive for only a year after launch). See http://www.canalys.com/pr/2008/r2008021.htm