I doubt it.
RIM kept to the same product, just releasing tiny updates to hardware. They didn't add new functionality. When they ventured out into new territory, they did so sloppily (the Playbook required a Blackberry to receive email). Their new device was lacking a feature that was their bread and butter - email.
RIM didn't add new functionality, really?
C++ to Java: 7200 series to the 7280/90
Greyscale to colour: 7290
1 soft button: 8700
Slim form factor, a proper earpiece for voice calls, trackball navigation for efficiency: 8800
> also allowed for microsd card use (IT Policy enabled)
> 8100 allowed the first BB to have a camera.
CDMA+GSM Euro bands: 8830World Edition
3G (when it was Still very new): 8707 3G Euro.
TrackPad: Bold 9700 (memory escapes me on this one).
Need I go on with factual proof?! Clearly RIM did add significant and much needed features - the camera was a HUGE surprise as many BES admin's had thought camera's where a no-no and would never be accepted into the corporate office (unless sneaked in); yet IT Policy allowed it to be blocked. This was rarely done though as storage media encryption served better purpose.
RIM's problem was offering the SAME basic features, the core tennant of its being to every model in the lineup. On top of that RIM kept forcing a hefty price on the APN to their NOC from the providers. Why pay $399 for a Bold 9700 when it was new with a $75/mth PP when you can buy a Curve 9300 for $199 with a $30/mth PP (just add the corporate BES feature SOC - most providers outside of North America didn't separate the plans BES/BIS came added on by default). Their pricing/marketing/and product model became redundant and their achilles heel as time went on.
Apple can fall to the same wayside if their stagnant. But I think Apple's possible loss of iPhone sales will come when the average user is advanced enough to accept other platforms like Android/etc when they wish to further personalize: themes, simplistic methods for ringtones (both free; the latter sourced from their own music), cheaper yet equally powerful and elegant devices ... and most importantly works well with their Mac's - this can occur over time.