It smells like... like... bullshit.
If the study doesn't name names, the study ain't worth shit.
Saying that "There are no guarantees apps for Apple's iPhone or Research in Motion's Blackberry would fare any better if subjected to the same scrutiny" does nothing if they haven't actually BEEN put under the same scutiny.
Till that happens, it serves as scaremongering against Android, and perhaps lead the market towards Apple or RIM on the basis that Security By Obscurity is a good thing. Or maybe that what you don't know won't hurt you...
I on the other hand see this as first class, complete and absolute, full up and down, grade A bullshit.
And I'm not buying it.