A short while back we saw details for the Sony Ericsson LT28at smartphone surface. And well, it now looks like that handset is going to be announced as the Sony Ericsson Xperia ION. Of course, we should point out straight away that this is nothing more than rumor and speculation at this point. Let us explain — it seems Sony Ericsson has recently filed a trademark application here in the US for “Xperia ION.” The trademark was filed on December 13th. Basically, the trademark filing and recently revealed details are sort of pointing towards a CES announcement.