Mac OS X v10.4 Tiger should be the first new version of the operating system to help increase Apple’s PC market share, according to one Wall Street analyst. Merrill Lynch’s Steven Milunovich said in a research note obtained by MacMinute that based on the features of Tiger and the halo effect from the iPod, Apple’s PC outlook is “rosier this time.” Milunovich estimates that first quarter Tiger sales will be $84 million to $100 million, compared to $60 million for the previous version of Mac OS X, Panther. The analyst also said he expects upgrades to Apple’s iMac and eMac lines to soon be released, and that the Mac mini will help the company’s desktop share to reach the same level as its portable share.