I don't really see the BlitzPlus commands giving BlitzPlus much of an edge in 2d games. Most of the new stuff for BlitzPlus are GUI commands, and to be frank, not too useful right now.
You can make 2d games in blitz3d fine, or even better than in BlitzPLUS, as you have access to hardware accerelation in blitz3d, like sprites, alpha, realtime scaling, realtime rotation, etc etc, which is not natively avialable in BlitzPLUS.
BlitzPlus does have the advantage of making you stuff compatable with nearly every windows machine with any version of directX. That's my main usage for it.
You can make 2d games in blitz3d fine, or even better than in BlitzPLUS, as you have access to hardware accerelation in blitz3d, like sprites, alpha, realtime scaling, realtime rotation, etc etc, which is not natively avialable in BlitzPLUS.
BlitzPlus does have the advantage of making you stuff compatable with nearly every windows machine with any version of directX. That's my main usage for it.