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[on:]

For what its worth, my experiences of using the Leonardo.

http://www.doctormonk.com/2012/10/arduino-leonardo-vs-arduino-uno.html

[Reply #1 on:]

 Nice write-up! I was wondering a little myself, what the differences might be between the boards.

[Reply #2 on:]

Indeed a nice write up.
I have bought some leonardo 's and in contrast to Si I had some bad experiences.
The first thing that completely baffled me was the double use of the USB. The USB port uses 2 com ports. one to upload and one to use for the serial monitor. Both ports are not active at the same time. Which means that when you plug in the board first the Upload com port is activated (pling) then it disappears (plong) then the serial monitor com port is activated (pling). On my system that means lost of sound (pling plong) 
When I rest the leonardo it goes (plong;pling;plong;pling)
I was surprised not to read anything about this behavior in the article.
Maybe it is a windows thing? (I'm mostly using Windows)
Then I got problems with 64bit RXTX dll. ( I admit I'm not using the Arduino IDE)
That is when I switched back to the old boards. Maybe I should take a new look and stick to 32 bit tools.

Best regards
Jantje

[Reply #3 on:]

I was surprised not to read anything about this behavior in the article.

Ah, you see I am a Mac person.

However, there is the annoyance on the Mac, that every time you plug it in, it decides you have got a new keyboard and invites you to identify it by pressing certain keys. Fortunately it carries on anyway, so you can just ignore the window.

[Reply #4 on:]

The OP link seems down or broken... And since this is the #1 result on google for the topic, I think it's OK to reply to it.