AT&T published a new promo video for the HTC One Android smartphone in which they give an overview of key features, like Blinkfeed, Zoe, Sense Voice, Sense TV and BoomSound. The second largest carrier in the nation also shows off a pair of accessories for the HTC One: the double dip flip case and Mophie juice pack. However, the most notable part of the video is when AT&T mentions an exclusive 64GB model of the HTC One. That’s right, AT&T subscribers will be able to grab the One with double the internal storage compared to the standard 32GB version, which AT&T will also have in stock when the device goes on sale in the U.S. in late April. There’s a chance it could just be a temporary exclusivity among US carriers, but those on Sprint, Verizon and T-Mobile probably shouldn’t hold their breath for the 64 GB model at this point.