You have google working and improving there mobile OS (android). Then you have the fact that all the phone makers can take this good mobile OS and put it on what ever hardware they plan on creating. The phone hardware companies are good an making hardware, not software. They no longer have to really worry about that. They build the best hardware they can come up with and load android on it.
Apple still has a far superior GUI and will always be much more secure for those who think about security. Apple has seen what can happen with a totally open environment like with windows and all it virus's. iPhone users dont have to worry about there phones getting virus's, yet the company SMobile seems to think android users should be worried about virus attacks and have created an anti-virus for android phones.(not supprising)
SMobile, Mobile Security Software for smartphones and other mobile devices. Exclusive BlackBerry Antivirus Provider