I want to create an application for several mobile platforms (android, BB, iOS etc) which has the capability to use nfc peer to peer functionality. (for example, to read/wri
If you don't plan to take advantage of the capabilities of the devices like a native app can, I suggest you to take a look at PhoneGap. When we talk about cross platform apps, it is the most common framework. Also you can use phonegap-nfc plugin to support android, bb and windows phone 8.
We have developed ~5 NFC applications for Android, iPhone and Windows Phone 8. We are starting BB10 now.
Do not count on cross-platform there - at the end you will not save either money nor effort. I have nothing against cross-platform and we heavily use it e.g. on Google TV or PS3, but not there.
It is simpler (at least for us) to quickly come with Android, iPhone (iCarte), Windows Phone 8 and possibly BB10 application done in native code. The content itself can be rendered with use of HTML/JavaScript/CSS.
BR STeN