Investors are concerned that policy makers will implement additional tightening measures to control residential property prices.

WSJ: H-P, AIG Lead Stocks Higher

Chinese stocks will probably not be so fortunate, with markets in both Hong Kong and Shanghai set to finish the week lower amid fears that Beijing will implement further tightening measures to control prices in the residential property market.

WSJ: Asian Shares Mixed Amid Weak Europe Data

By comparison, Apple and RIM offer direct control over the devices that implement their operating systems and have measures to detect and disable attempts to modify the operating system.

FORBES: An Apple Win Deals Another Blow to RIM's Blackberry