Summary: I bought 2 Sony Xperia Ion Lt28at&t almost 5 weeks ago and with many apps confirming what in effect the memory ram is: 646 mb not 1Gb, even has 2 cores not 4 how in the characteristics appear and when it is in 3g network appear the symbol 4G in the notification bar, not has tested in LTE, but must admit it the OS is the ICS more it the 2.3.6 Android version.
Summary: I've owned many many android phones and this one lands in the middle of the pack. Nothing really stands out in features. The screen is adequate but not spectacular. The camera takes mediocre pictures and the user interface is jumbled and confusing.
Summary: The Xperia Ion LT28a cell phone is no longer sold by Sony. This makes it an excellent value, having all the features needed for my purposes. I use the phone for calling, WiFi for all services requiring internet access. I have no need for 3g/4g. It is like having a "dumb" cell phone and an ipod in the same unit. The camera is excellent, GPS works well, all internet-based services are fine.