They're very nice to work with. I wish I'd had the chance to do more than three or four projects with them. As Dave mentioned, the ARM has just overtaken them in price/performance in most areas and since (at least the models I used) didn't have a memory manager they could not run a full Linux. The single process uCLinux was fine, however. But they were just fantastic with MQX, eCos, and ThreadX. For eCos it was the cygwin-based GNU toolchain, an old familiar friend and I appreciated that. For ThreadX it was WindRiver's Diab under Workbench. Decent enough but the Eclipse framework it's based on was a bit piggish at the time. Today's computers should have no problem with it though. The MQX project was done under CodeWarrior which was nice. That was just a board bring-up and Ethernet demo deliverable. Didn't do too much beyond the startup code, RAM Test, and a couple of threads to blink an LED and respond to an echo server. The customer just wanted a ready to go platform to develop their app. Incidentally, there is a relatively cheap way to get into CodeFire development: http://www.dilnetpc.com/dnp0052.htm The nice thing about this kit is the entire CPU module is on a small board with dual-inline pin arrangement that can be mounted on a hobbyist prototype board. They don't have the price listed there but I think it was $130 ~ 160 or so. It came with a working eCos build and tool set so it was quite a value. If you're going to design a custom board you'll also need a BDM JTAG probe which costs $250. It's the only way to program the chip's flash with a boot loader the first time. Amardeep