The Wi-Fi Alliance announces WPA2 security certification is now mandatory in order for products to receive Wi-Fi certification:
WPA2 includes Advanced Encryption Standard (AES) and is based upon the full IEEE 802.11i standard. WPA2 is fully compatible with WPA, the first generation of Wi-Fi CERTIFIED security, and brings the technology two generations past WEP (Wired Equivalent Privacy), the original security method for Wi-Fi networks.
Both WPA and WPA2 support Personal and Enterprise implementations. The Personal implementation is designed for consumer use, encrypts data with AES and uses a password as the basis for the encryption key. WPA2-Enterprise also encrypts data with AES, but uses the more robust Extensible Authentication Protocol (EAP) to authenticate users.