Simply put, no.
Stylus input on the iLiad is because of the wacom technology the display uses. Unless you somehow retrofitted a wacom tablet to the Kindle, it won't work.
However, depending on how the Kindle is setup, how similar the rest of the hardware is, etc, (complete speculation here) it may be possible to run the Kindle's OS on the iLiad (or vice versa). We'll have to wait an see.