See http://www.m0nka.co.uk/ . It is described as a small and inexpensive homebrew HF transceiver. Features (as listed on Chris M0NKA's website):
- Standalone and compact embedded transceiver
- Operates on USB, LSB, AM and CW
- Large 2.8 inch color LCD
- Four encoders and 17 buttons for easier operation
- Fast and fully electronic RX/TX switching
- Two USB ports – for PC control and external keyboard
- Two temperature compensated oscillators/clocks makes it ideal for digital modes
- Four digital filters – 1.8kHz, 2.6kHz, 3.6kHz and 10kHz
- Built in Iambic Keyer that supports Mode A and Mode B
- Large 48kHz spectrum display