Wikipedia and other sites legal reuse
I'm considering development of a few Android custom clients for other sites, f.e. Wikipedia. I've already seen such apps in Android Market and I'm thinking about legal matters - is it legal at all? 

Also what about applying custom changes to what user can see (like in Wapedia - layout is way different than in official wiki client)

Thanks a lot in advance.

Regards,

Adam.
Wikipedia and other sites legal reuse
===

I'm considering development of a few Android custom clients for other sites, f.e. Wikipedia. I've already seen such apps in Android Market and I'm thinking about legal matters - is it legal at all? 

Also what about applying custom changes to what user can see (like in Wapedia - layout is way different than in official wiki client)

Thanks a lot in advance.

Regards,

Adam.