Not quite ready to make a $100 upfront commitment for AT&T’s Sony Xperia Ion? Perhaps the manufacturer’s more affordable offering is what you seek. The entry-level Sony Xperia Tipo, which was unveiled to the world just last month, was all dolled up for its FCC appointment yesterday.

As reported by Unwired View, FCC has just approved a Sony phone that goes by the model number ST21a. There’s no doubt that this is the U.S. variant of Xperia Tipo, which will run on 1900/850 WCDMA network. They’re the same frequency that AT&T operates in. It appears we might just see the Tipo joining its big brother on AT&T very soon.

The Sony Xperia Tipo is pretty much thrill-free in the specs department, but it does pack something that even the flashier Sony models don’t have. You see, the phone ships with Android 4.0.3 Ice Cream Sandwich out of the box. The rest of the features is what one expect from a budget offering; it boasts a 3.2-inch HVGA display,  single-core 800MHz Snapdragon processor, Adreno 200 GPU, 512MB RAM, 2.9GB internal storage, microSD card slot, 3.15MP rear camera and 1,500mAh battery.

If you remember, the Sony Xperia Tipo actually has a dual-SIM cousin, the Xperia Tipo Dual. But we don’t think any U.S. carrier will be touching that model anytime soon.

This is early days still, so we are still light in details on Sony Xperia Tipo’s launch and price – or if it’ll actually be released on AT&T and joined its budget smartphone lineup. We’ll keep you updated once we hear more.