mostsoftware in the android market is malware posing as freeware. that software which renders internet ads is: adware (showing ads), spyware (collecting information about which sites one uses and which applicaiton one uses, and details about one's phone), and malware (acting against the best interest of the user). Root your android phone (with z4root or SuperOneClick) and install DroidWall, Permissions Denied, Privacy Blocker, Tasker, and LBE privacyguard to stop most of that shit.
"paying" developers by allowing them to privacy rape you is FOOLISH. That COST is too high
spyware is ANTITHETICAL to free (opposite of free)