The idea of 4K TVs still boggle my mind (and eyes), but 4K phones? Do we even need them? According to a comment last week by Qualcomm's VP of Product Management, Raj Talluri, we will see phones with resolutions higher than 1080p one day, and speaking to Sony's UK Managing Director Pierre Perron, that's something Sony would back -- if enough people showed interest, that is.

In an interview during CES, Perron outlined his thoughts on the possibility of 4K (or UltraHD) phones to me, saying "We might consider it. We can now see the 4K technology being deployed across different screen sizes, but as a smartphone manufacturer we always need to balance the technology with cost, and other factors. If it doesn't bring any consumer value, I don't think we need to follow it."

Referring to the Xperia S, which was outed at last year's CES, Perron explained that Sony "only went for quad-core now because we weren't sure the technology was there last year. Consumer experience is always the driver for what we do, not keeping up with other manufacturers."

As my US colleague Brent said, this could fast become the new pissing contest for headline-grabbing manufacturers. Sigh.