Should we give the access to mobile version to all users on desktop. by having a differetn url like http://m.yahoo.com/or it's good to keep mobile version and desktop version access only from mobile and desktop like http://sl.dk. Although advanced user can see by changing UserAgent?
If we decide to give different url to mobile version and will redirect from main domain to mobile version if user is accessing from mobile then how i should keep url ? though desktop user can also see the mobile version by typing mobile url.
1) Keeping mobile version in sub folder like http://bagcheck.com/mobile
2) With m. subdomain like yahoo http://m.yahoo.com/
3) or like http://mobile.twitter.com/
4) or a totally different url http://website.mobi