I know so many people who still have a normal calculator on the desk next to their PC keyboard. Looks like Casio wants to help those people to have the best of both worlds. Casio introduces calculators with a wireless and USB PC interface.

The Casio MZ-120WL and Casio JZ-120WL calculators are bundled with USB dongle to enable a wireless connection to use it as a 10 key number type pad. The Casio MZ-20 is connected directly via USB. All new Casio calculators have solar cells. The Casio JZ-120WL has some more calculator features.
Casio will ship the new calculator's in September. prices are between $45 and $63.
More details in this Casio press-release (Japanese).