templates tags for multisite manipulation

hello there,
in a WP single site install, there are functions like getbloginfo(), getoption(), and so on, available to get info about a single site and to manipulate. in a multisite scenario, what are template tags available such that for manipulating contents to be served based on the site name/id.

for example, if i want a content for my mobile site only, what template tag/parameters are my to use.
thank you