As recently as a year ago, Windows XP was the kingpin of PCs in the US with 43.1 percent market share. But that's rapidly changing. StatCounter shows that while Mac OS X is creeping up slightly and Windows Vista continues its death march, Windows 7 is on the rise, steadily closing the gap with trusty ole' XP. Last month, XP's share sank to 32.17 percent, while Windows 7's edged up to 30.84 percent, leaving the latter poised to overtake XP -- something the much-maligned Vista never did. And if early numbers are to be believed, it's already happened: StatCounter says that for the first week in April Windows 7's share (among desktops, at least) totaled 31.71 percent, compared with XP's 31.56. Either way, it seems Microsoft has convinced consumers that it's finally safe to upgrade.
Pentax's Optio WG-1 GPS point-and-shoot satisfied geotaggers out of the box, but owners of its K-5, K-r and 645D DSLRs have had to make do with third-party taggers like the PhotoTrackr or Eye-Fi. The new hotshoe-mounted O-GPS1 module fixes that oversight by recording latitude, longitude, altitude, Coordinated Universal Time and shooting angle. Everyday snappers might find an extra hotshoe attachment cumbersome, but astro-photography enthusiasts could well be enticed by the device's interesting "ASTROTRACER" function. This helps you take clearer photos of celestial bodies by using the in-built sensors to calculate a star's movement and then employing the camera's shake reduction system to compensate. Sounds clever, but be advised: this module is only for Pentax DSLRs -- and only for very specific models at that. You'll get full functionality with the K-5 and K-r cameras, and geotagging (no ASTROTRACER) with the 645D. Oh, and you'll need to make sure yo
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