Touch Arcade:
During WWDC 2010, we had a chance to talk with Owens Rodriguez and have a quick look at his upcoming iPhone shooter, Alien Space.
The game, which strikes me as something of a cross between Asteroids and Super Stardust HD (and, as such, Meteor Blitz), is a dual-stick space shooter featuring 50 levels, various upgradeable heavy and light weapons, and online achievement tracking and leaderboards via Apple's Game Center.

Portable Gamer - As dual stick shooters go, the App Store is beginning to become a bit crowded as of late. The problem is, with games of this variety, controls are a key aspect to success or failure. Though it has been lamented time and again, iOS devices tend to leave something to be desired in this department, given the lack of a tactile feedback controller of any sort. That said, when a developer nails the controls, it can be a big boost, even when the gameplay is somewhat derivative. So can newcomer Alien Space nail the navigation, or is it going to flame out in flight?

Alien Space offers both a 30-level campaign and a Survival mode in which to compete for big scores and a place atop the OpenFeint leaderboards. Taking to the dark skies in the outer reaches of who-knows-where, you are tasked with avoiding asteroids and vaporizing any alien life force that means you harm. You handle this by means of both a light and heavy weapon, which can be selected from your arsenal and upgraded as you earn points for
AS: "Alien Space adds a challenging edge to its AI that helps it to stand out from the hum-drum pack of the App Store's generic twin-stick shooters."