All under the sun ( :-)

Emulation
Texas Instruments
Nspire
Tips on how to get it working on Windows
http://hackspire.unsads.com/wiki/index.php/Emulators

Get images from
https://thepiratebay.org/search/nspire/0/99/0

Earlier variants:
http://www.demonoid.me/files/?query=texas+instruments+virtualTI
Casio
9860

General Information
Casio
9860
http://en.wikipedia.org/wiki/Casio_9860_series
Classpad
http://en.wikipedia.org/wiki/Casio_ClassPad_300
Prizm

Texas Instruments
Nspire
SDK
Casio
9860

Texas Instruments
Nspire
Manuals
Casio
9860
Texas Instruments
Nspire

Reviews
Comaparing Casio Classpad with TI-Nspire
http://www.casiocalc.org/?showtopic=3971