i think all the "reasons" why an i5 isn't possible are more like excuses, but i won't go into that here it has been discussed before. Even if then can't fit an i5 into the MBP13 or the MBA i am sure they could fit the june2010 i5 ULV into one for he coming refresh ... if they wanted to. It is said to use less power, and thus generate less heat, based on 32NM. that would mean a cooler laptop, less fans, but still turbo-boost and hyperthreading. seeing apple had the NV320M especially made i am sure we will see that in another few MB(A)(P) models.