The announcement of an official Pokémon game for the iPhone and iPod Touch caused some news outlets to speculate that Nintendo was testing the App Store water for its other major properties. This isn't the case of course, as the company clarified.

Nintendo shares rose as much as 4.9% after the announcement of Pokémon Tap for Apple devices, before dropping after Nintendo spokesman Yasuhiro Minagawa reiterated the company's stance towards iOS games hadn't changed.

Mitsuo Shimizu, an analyst at Tokyo firm Cosmo Securities, gave his verdict on the climb and dip:

The share movement showed how much investors are hoping for Nintendo to change its strategy. Nintendo should consider developing games for smartphones or players that can also act as mobile phones, as it suits the lifestyles of many people.

Do you agree with Shimizu's thoughts? Would you want to play Nintendo games on a smartphone? Let us know in the comments below.