Download a QR reader/scanner (Android) apps available via AppBrain. You can also download these via the Android Market:
Read QR codes without an app
JAGTAG - "JAGTAG requires no application download and no Internet access. We use a blend of SMS/MMS, Email and Twitter to send Images and Mobile Video to your consumers."
ScanLife - “Scan & Send” basically allows someone to take a normal picture of a 2D or 1D barcode, send it to us by MMS or email, we will decode it from our server and send back the correct content.
Have a favorite QR Code tool/widget/generator? Let me know!