Microchip has just expanded its K50 line of the PIC18 family with the new version of two widely used PIC microcontrollers, 18F2550 and 18F4550, that now add a “K” in their names:
http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en558862
http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en558861
The most interesting feature – these microcontrollers are often used as usb devices – is the ability to use an RC internal oscillator also for USB functionality:
Both the two PIC are already available on Microchip Direct, while in the most famous webstores are still in pre-order.
The price is very surprising: about 35% lower than the actual ones!