I wonder if MS will offer any incentives to purchase Windows phones or tablets

They could easily do what some Android phones have done with Dropbox and offer say 100GB of Skydrive storage for any phone or tablet purchase. Also just general discounts or free trials for things like Office, and Xbox Live. These are things that they routinely discount and offer free already in various situations, like with student purchasers, etc. Anyone else think this could help with adoption?