Reading entries to the Bluetooth SIG for device certification can be a frustrating activity. They're generally void of any telling detail aside from the device's model number, and they rarely give any insight into what we can expect from the upcoming product. The Sony Ericsson LT28at, a handset we haven't seen or heard from before, decided to be a little different and use the opportunity to get a little pre-CES scoop. The LT28a -- not to be confused with the LT26i (Nozomi), a rumored handset with a 4.3-inch HD screen and 12MP camera -