For all of you BlackBerry users that were worried RIM was going to close up shop because they couldn’t possibly compete once the iPhone SDK becomes available, don’t fret. Apple has decided to allow BlackBerrys to be sold at least through the rest of the year by locking down their SDK tighter than Verizon could ever lock down a mobile device.

That is an awful lot of sarcasm, I know, but I couldn’t resist. Two days ago we found out that the iPhone SDK was going to add some pretty cool features and functionality to the iPhone and many people were already claiming that Apple had somehow won the war for smartphone supremacy in the enterprise. Today we find out that the iPhone SDK has some pretty serious limitations, namely no background processes for third party apps, that will give the iPhone less teeth in the enterprise than many other BlackBerry killers that never panned out.

I’ve said it before and I’ll it again. The iPhone very well may end up on top by the time it is all said and done. That day, however, certainly isn’t today, won’t be tomorrow, and probably won’t be anytime in the near, foreseeable future.