According to several sources speaking with trade site MCV, Sony's biggest E3 surprise may be the long-awaited - and badly-needed, at least outside of Japan - successor to the PlayStation Portable.

The sources don't hail from inside Sony, or relate specifically to the rumoured device's design; instead, they come from various publishers, some of whom are unable to comment on PSP matters until "a specific announcement from the platform holder", while others have initiated "a significant increase in marketing spend" aimed at the end of this year, something highly unusual for the current PSP.

It's not the first time we've heard rumours of a true second PSP - it's probably the 1,637th - and as E3 draws nearer, it probably won't be the last, either.

PSP 2 – the big E3 surprise? [MCV]