Microsoft's hopes of reclaiming the tablet space with Windows 8 may be overly optimistic, Forrester Research uncovered in a study Tuesday. Out of 1,810 Americans asked this summer, only 10 percent would consider a Windows 8 tablet if it were available now. The rank put it at the same level of interest as the ailing BlackBerry PlayBook and below the then-selling HP TouchPad at 16 percent.