Is Yii ideal for an interactive multiplatform mobile app based application?

Hi Everyone,

I need your feedback on this requirement of mine.

Is Yii a good idea to build a multi-platform app (iphone, ipad, android, windows phone) which offers an interactive educational framework which is secure (involving wallet payments/CC integration etc) and scalable? Mobile app is the basic requirement here.

OR is there any other better approach that can be taken instead of Yii for the back-end infrastructure?

Pl. share your suggestion. Any similar solutions/references are also welcome.

Cheers

PS: Sticking to Yii just because available resources & familiarity. A new platform will introduce a learning curve & hence this question.