I updated my VTab to the OTA 1.5 update this morning..
However the version still reads 1.4 even after some cold reboots, here are the details listed after the update:
Android version: 2.3.2 GRH78C
Kernel Version: 184.108.40.206+
Hardware Version: Hardware ID:5(PVT1)
Software Version: V.I.A Plus 1.4
Uboot Version: 1.1.18
Build Number: 1.9.57
I hope this helps some of you to see what changes, but I am still unsure as to why Vizio promote this OTA update as 1.5 when the details in the About Device still clearly indicate 1.4? I guess this is just a ruse to make you think you are getting the next level of features but in reality it is just to stop people rooting their devices.