If a dual-SIM smartphone is not enough for you, the Flying F160 may be what you are looking for. Its claim to fame is that it is the first phone to support four SIM cards, all of them in standby simultaneously. And there is apparently quite a demand for such a device:
Who needs a quad SIM phone? Frequent travelers, people who want different numbers for work and personal life, and…let’s face it…people with lots and lots of extramarital affairs and general pimps of the nation.
Other specifications are quite bland: Quad-band GSM connectivity (no support for CDMA or 3G of any kind), a 2-inch QVGA resistive touchscreen display, a QWERTY keyboard, Wi-Fi, Bluetooth 2.0, a microSD card slot (supporting cards up to 8GB), dual 0.3MP cameras, and TV and FM radios.
The Flying F160 is currently on sale for US$75.
Source: The Red Ferret