The digital revolution has begun! From today, PSP owners are able to download a total of 20 titles direct to their machines that either have previously been or are currently available on UMD.

And unlike Microsoft’s Xbox 360 Games-On-Demand service, which offers prices far steeper than those found at retail, Sony’s has chosen to be quite competitive with some of its prices – which will be good news for PSPgo owners who no longer have the chance to hunt down the cheapest retail price.

Here’s the complete list of the UK launch titles currently on the PSP Store. Don’t forget – there are also 13 Minis to choose from too:

IL2 Sturmovik: Birds of Prey – £31.99
Soul Calibur: Broken Destiny – £23.99
Gran Turismo – £21.99
MotorStorm Arctic Edge – £21.99
God of War: Chains of Olympus – £14.99
Grand Theft Auto: Vice City Stories – £13.99
Grand Theft Auto: Liberty City Stories – £13.99
Midnight Club L.A. Remix – £13.99
Midnight Club 3 DUB Edition – £13.99
Exit 2 – £13.99
Full Auto 2 Battles Lines – £11.99
Iron Man – £11.99
Crush – £11.99
PixelJunk Monsters Deluxe – £9.99
Manhunt 2 – £9.99
Gottlieb Pinball Classics – £7.99
Thexder Neo – £6.29
Rock Band Unplugged – Starter Pack) – £3.19

Tomorrow (October 2nd) will also see the release of FIFA 10 and Beaterator, which will be priced at £29.99 and £23.99 respectively.