This conference focused on Carrier Wi-Fi, and specifically roaming and interoperation between network operators. It's overseen by the Wi-Fi Broadband Alliance (WBA), with Avren/Clarion running the event. Don't confuse the WBA (with 100+ members) who focus on Wi-Fi roaming with the Wi-Fi Alliance (with 500+ members) who concentrate on Wi-Fi equipment standards and certification.
Attendance has almost doubled to 460 this year, showing rapid growth in this sector. As Richard Webb of Infonetics commented during his introduction, Wi-Fi used to be discounted by mobile operators (or worse) but is now very much a part of mobile network operator strategy. A variety of service providers attended including both mobile networks, fixed networks, cable and wireless.
What's this got to do with Small Cells? The previous week's Small Cell conference reinforced the intent of many (most) mobile network operators to incorporate Carrier Wi-Fi capability into 3G and/or LTE small cells. This week's conference was a good checkpoint to compare how far Carrier Wi-Fi has developed and how close we are to the seamless integrated quality cellular/Wi-Fi experience that operators are striving to achieve for a sensible cost.