What RIM should be doing.
This market coverage nonsense is ridiculous and damaging the BlackBerry brand.
There should be no 'low-cost' BlackBerry, nor should there be a premium one. There should be ONE BlackBerry. I'd go so far as to say they need to stop the Curve, Storm, Pearl and Bold lines all together. It should just be called "BlackBerry."
One piece of hardware, the same for all BlackBerry users: a unified experience, an easier platform for developers (one device, same specs - you know your app will be the same on all devices).
RIM's strength is the candybar format. It should be candybar only. On top of this, no other major (Apple, current Android hardware, Palm) smartphone device uses this format beyond RIM. It has, is and always will be their major strength/market advantage.
With ONE (and only one) device, RIM can then devote all focus to absolutely nailing software. Unlike others, I do not believe RIM needs to scrap everything and start from the ground up, but what RIM do need to do is RADICALLY update the UI/UEX. When you read all these comments about BlackBerrys running an archaic OS, very rarely do you actually read a knowledgeable comment from someone who can actually specify how it is archaic. The majority of end-users are commenting purely on UI. A radical shake up of the user experience should keep these comments at bay for 2-3 years, allowing RIM to rebuild the BlackBerry OS on top of a Linux-based kernel, thereby assuring its sustainability for years to come, staving off Android, and maintaining market dominance (ceteris paribus for all other competing smartphone development roadmaps).
The device should have a touchscreen, combined with physical keyboard. The menu, call, end and back keys should be part of the touchscreen, but not capacitive buttons. They should be an area of the UI reserved for those buttons, whose appearance changes depending on the context the user finds himself in. Difficult to explain and visualise, but try to imagine something along these lines:
User on homescreen: traditional BlackBerry buttons.
User in messaging app: the four buttons become: compose, reply, delete, back.
For additional menu operations, a long press anywhere on the screen will bring up an expanded menu, in draw format, which 'grows' out on top of the other 'buttons' already present. This creates a powerful adaptive UI - somewhat already seen on Android, iPhone and webOS, but not used in this capacity.
Mockup of the device below.
The end result of this is that RIM re-assert themselves in the smartphone market with re-invention and innovation, without having to drop support for older blackberry models and their current business practices. At the same time, with only one BlackBerry device being made (and updated yearly, with the updates focusing mainly on software), RIM will ensure that gradually both consumers and enterprises move to the new standard of BlackBerry for both easier support (identical hardware) and to keep up with the rate of change of technology. This will actually allow RIM to then drop support for archaic BlackBerry models more quickly, as there will only be one potential model to upgrade to in the future.
Time allowing, I'll create a UI mockup as well.