We here at Engadget are in favor of hitting the books from time to time, but we can't have lame gadget-less backpacks hurting our true techie rep. That's why we're excited to see Ralph Lauren outing its first solar-equipped knapsack as part of its RLX sports line. Four solar cells around back harness the sun's power to generate 3.45 watts -- completely juicing up an iPhone in a purported two-to-three hours, assuming you've got "proper sunlight orientation," of course. Like the optional orange hue (it also comes in black), the sun-sucking cells aren't particularly low profile -- but for $800 don't you want something, uh, recognizable? Still, if you simply must be that guy be sure to hit the source link and don't look back, but for everyone else, might we recommend a portable USB charger for a little less coin?
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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