Somehow I wonder if this research was done based on the cell phones already being used out there, and not on what has actually been sold in the last year. So for a different view here is what we have sold in the last year.
We (2 cellular outlets) haven't sold a motorola in over a year, not one. (Actually all their reps were retrenched a year ago, the company all but died here in SA) But before that the big chain stores had lots of cheapy specials for them. Something like R99 a phone - they sold thousands. This goes back at least 2 years, but I guess they may still be in circulation.
Blackberry is climbing slowly now, thanks to a more affordable model and better pricing on the service... becoming big in the "coo - girl" (spelling?)market.
Samsung is flying with the star, but nokia still has the edge because of their range. Samsung has just brought out a whole new range to match tho, so we watch. Don't think their upper range will do to well tho, they try to copy iphone and it just cannot be done.
If iphone was cheaper, it would be a killer.
HTC - only for gadget techie's, and then few and far between. Since the tytan it has died! Will watch the hero closely but so far still quiet.
LG have 1 model that is moving, and sony ericsson is trying hard, but haven't had a winner in a while.
As for vodafone, they have all of 2 models that we sold, but at R199 and R299 I guess like motorola, there could be a few out there. Sales have dried up this year tho.
This is based on what we have sold over the last year, not any scientific research... just by the way.