I can't find any more such chips from NXP. (The ones that are available with USB require software to be developed and programmed into the device that turns it into an MSD - which is great if you got the time.)
Well, STM32s with USB have builtin bootloader with DFU protocol support. No drag and drop for apple hipsters, everyone else just fires dfutool.
Searching on DFU - it be "Device Firmware Upgrade" or DFU protocol for USB.
A lot of micro controllers chips with USB implement it - the only thing is that it seems to be called different thing between different manufactures. Shame. I could have done with this feature a long time ago
Many companies have DFU software to add to a CPU with USB - like Microchip, but apparently when one guy did a mod and released it, he got a full cease and desist order served on him - so DFU as software utility is something to be weary of if not built into the chip.
The IDE is by Code-Red which is Eclipse and it is available for Linux. NXP have bought them out recently and now 256k of code generated by it doesn't require a license.
Good find for apple hipsters. Everyone else uses gcc anyway - for all chips and architectures.
Eclipse here is just a graphical user interface wrapped around gcc which does all the grunt work.