What is interesting is that this reported $5B application processor contract with Samsung is likely drying up after the iPhone5S (plus next iPad rev?) as Apple transitions to TSMC. It therefore implies that all TSMC designs will likely be 64-bit, which will now likely change the planning for other pure-play foundries dreaming of that $5B order from Cupertino:

http://www.eetimes.com/document.asp?doc_id=1319218