The lack of a dedicated number pad on Apple's Wireless Keyboard is probably a deal breaker for spreadsheet junkies. Unless they're willing to spend $60 for this matching bluetooth calculator accessory that returns that luxury.
The price tag is a little hard to swallow given Apple's keyboard is just $10 more, but south paws will love that their number pad can finally be placed on the left side of their setup.
On its own it's your basic ten digit calculator with a twelve character numerical display, but pair it to a Windows or OS X system and it will become an Excel user's most trusted companion. Of course its familiar styling will probably make it better suited to complementing Apple's hardware, but who am I to tell accountants—the rebels of the finance world—what gear they should use this with? [SMK-Link via Ubergizmo]