It looks like Sony Mobile is on track to launch the Xperia ion in the United States during June. The international version of the Xperia ion has already gone in sale in Taiwan, but the LTE version headed to AT&T in the US was always pegged for a Q2 release back when it was first announced in January.
The first firmware for the AT&T version of the Xperia ion (LT28at) was certified yesterday by the PTCRB with software build number 6.0.C.1.245. Firmware will normally hit the PTCRB at least a couple of weeks before release. In addition, the Xperia ion recently passed through the FCC, a prerequisite before a wireless device can launch in the United States.
To cap it off, Sony Mobile re-released a couple of Xperia ion promo videos. We imagine they did this to remind people that the handset exists and to create some buzz around it before launch. All in all, it looks like we will finally see the US launch of the Xperia ion and none too soon in our view.
httpv://www.youtube.com/watch?v=PuauXHDuYSI&feature=plcp
Thanks @wimpiedb!