Good Gear Guide
In Pictures: 25 Valentine’s Day gifts for geeks at...
High-tech meets low-tech
No charge left in your iPhone but you need to do some quick math? No problem, if you’ve got the Abacus iPhone case ($24). It has a functioning abacus, with beads shaped like tiny apples, built into the flexible plastic form. The designer is Joaquin Baldwin, who has a shop of 3D-printed gadgets and sculptures on Shapeways.
In Pictures: 25 Valentine’s Day gifts for geeks at heart