We've been hearing snippets of rumours that a souped-up version of HTC's flagship phone, the One X, was on its way and it looks like it might be here sooner than expected, having appeared in O2's marketing.
A brochure entry -- spotted by GSM Arena -- shows an apparently identical phone to the existing One X, which isn't much of a surprise. It looks to offer the same 4.7-inch screen with three touch-sensitive buttons along the bottom for navigating around the Android interface.
That software will apparently be 4.1 Jelly Bean. The standard One X is still waiting on an update from the older 4.0 Ice Cream Sandwich, so it's great to see the latest version on board as standard rather than vague promises of a future update.
The picture indicates that the one X+ will pack a quad-core processor -- presumably the same Nvidia Tegra 3 chip found in the standard model -- with a turbo boost to 1.7GHz. That's only a slight increase over the 1.5GHz on the regular One X, but it should help you tweet those awful Instagram snaps quicker than ever.
It will apparently have 64GB of storage, which is a considerable amount. That's going to come in particularly handy, as the One X didn't offer expandable storage and it's unlikely this model will either. It also packs Beats Audio, which is no surprise, so expect the red Beats branding around the back.
Camera-wise, things don't appear to have changed much, with the One X+ bringing an 8-megapixel sensor to the table. Again, that's the same as the regular One X, which performed adequately in my extensive tests against the Samsung Galaxy S3 and iPhone 5, but it wasn't a match for Apple's snapper. We'll have to wait and see whether HTC has made any improvements over the existing camera this time around.
The listing puts the phone at £480 on pay as you go, which is about what I'd expect, and pay-monthly deals will surely be announced soon.
There's no word on exactly when this latest iteration will be available, but with this listing turning up and leaked spy shots of the handset appearing on Twitter, we evidently don't have long to wait.
What do you think of the One X+? Does it tempt you more than a Galaxy S3 or an iPhone 5? Let me know in the comments below or over on our Facebook page.