The problem to be solved is how to support background processing of 3rd-party Apps without draining the battery.
Thus we are trying combinations of call-backs and App hibernation techniques.
Battery life is more important to me and I suspect most other smartphone users.
What is your evidence for OS4's multitasking being Poorly Implemented?
I recall reading an article linked from HK a few months back written by an Android OS developer who seemed to think it was a fairly solid crack at the problem.
What would you do differently?