Welcome to the weekly iPhone Quality Index (Qi) games round-up, giving you the LOWdown on the HIGH scorers every Friday on these illustrious pages.

As you may already know, Qi trawls the web for iPhone game reviews from the world’s most respected online and print sources.
Qi then applies its own magic formula to each site (such as 148Apps, Macworld, and AppSmile) to establish a single definitive Qi score for each iPhone app and game.

P-P-P-Poker Face

Shuffling furtively onto Qi's high-scoring deck of games this week with an 8.5 rating is Zynga Poker, which gives iPhone-wielding Texas hold 'em fans ample opportunity to excuse themselves from the office to play a quick round in the john.

Not content with taking over Facebook (and therefore the world), FarmVille's creator is slowly spreading its influence over the App Store, helped in no small measure by this slick and popular - six million players, ja - poker experience.

Don’t worry if your mates 'only' own an iPad, though, as 148Apps points out: "The best part of the app...is really its Facebook integration. Thanks to it, gamers can easily play with their Facebook friends from whatever iOS device they choose."

Battlefield Warfare: iPhone Ops

If outgunning rather than outbluffing is more your bag, then Deadlock: Online, the new dual-stick shooter from New York-based Crescent Moon Games, may tickle your (somewhat violent) pickle.
Deadlock: Online attempts to bring the fast-paced, rewards-heavy multiplayer thrills of console FPS games to the humble iPhone for less than a pint of milk.

That’s right: sweet, sweet nowt.

And according to Pocket Gamer, Crescent Moon largely succeeds, "It’s pleasing to see a developer take the genre in a slightly different – but entirely satisfying – direction.
"Deadlock: Online’s lack of a price tag makes it a no-brainer: you simply have nothing to lose by giving this unique shooter a try."

You can get the up-to-date information about which games are reviewing best over at the Quality Index.