Raspberry Pi has written a blog post on the new Mu, saying:
Mu is intended to be not the only Python IDE you’ll ever need, but the first one — the editor that helps you start your coding journey, but not necessarily the one you finish it with. So when you’re ready, you will have the skills and confidence to move on to using a more advanced Python IDE.
You can use Mu in a number of modes; modes make working with Mu easier by only presenting the options most relevant to what you’re using Mu for:
Ed. note: I think Mu will be the only Python editor I’ll need, it’s that good and runs on all platforms!
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.