These four models came under consideration for an Android 4.0 Ice Cream Sandwich update, but at the end of the day, NTT DoCoMo figured out it was easier to shelve the update simply because of memory and performance issues – definitely the lack of memory is involved for some of the handsets, that is for sure. DoCoMo PR mentioned that 1GB of RAM is required to have Android 4.0 Ice Cream Sandwich run smoothly, although it is rather weird as those living in the West have had Android 4.0 Ice Cream Sandwich running on those devices for some time already (other than the Sony Xperia PLAY, of course).