I would have expected that the shield pin layout is the same. Did I miss something?
You could go to the "Guide to the Arduino Leonardo" at --> http://arduino.cc/en/Guide/ArduinoLeonardo#toc1.
Then click on "show" in the yellow band after the first paragraph.
And then click on "Differences in pin capabilities".
This will tell you:
The Leonardo has some slight differences in the capabilities and assignments of various pins (especially for SPI and TWI). These are detailed on the hardware page.
The specific information you need is probably somewhere on that page .
Easy - wasn't it!
Don