As much as i keep looking i cannot find anything different apart from the speed so i suggest more work be done on this, i really cannot see a problem here because they are same family same package same pin outs/in.

There are many references to these 2 and i suggest you start with the wiki page....

http://en.wikipedia.org/wiki/Texas_Instruments_OMAP

take it from there.

NB OMAP3

The OMAP3 [1] is broken into 3 distinct groups: the OMAP34x, the OMAP35x, and the OMAP36x. OMAP34x and OMAP36x are distributed directly to large handset (such as cell phone) manufacturers. OMAP35x is a variant of OMAP34x intended for catalog distribution channels. The OMAP36x is a 45nm version of the 65nm OMAP34x with higher clock speed.[2]

http://www.linuxfordevices.com/c/a/N...shrinks-OMAP3/

Finally, TI confirms that the OMAP36xx SoCs are software-compatible with previous OMAP2 and OMAP3 processors, which run operating systems including Windows Mobile, Linux, Android, and Symbian.