London-based mobile game developer 1337bit introduced its first iPhone game - as well as one of the first games that requires users to get physical with their devices, as they might with a Wii.

Introduced in time for the Easter holiday, the game, Eggs Eggs Eggs, is a riff on a game played in Eastern Europe called egg tapping or egg jousting where people tap decorated hard boiled egg against the eggs of other players, according to the company. In the iPhone version, a player chooses a virtual egg and swings it using the iPhone's accelerometer. The harder you swing, the better the results, says TechCrunch Europe.

Players search for an opponent using Bluetooth or the EggsEggsEggs online service and start an egg fight. The goal is to break the opponent's egg before he or she break yours. Players have many egg options that can affect their game, such as of Fossils havoc, Poseidon or a Ninja.

"While you might have a hard egg that can inflict plenty of damage, if the shell's resistance isn't high enough it will break if you swing too hard," TechCrunch Europe says.

It was a fun app for Easter - but also points to the beginnings of what may be a larger trend, says the San Francisco Chronicle.  "There are plenty of apps out there that take advantage of the iPhone's motion sensor, but I think there is still room for a new generation of apps that tap into the same area of physical fitness that Nintendo's Wii did a few years back."