The wifi chip is a Marvel 88w8688 (
http://www.globalscaletechnologies.com/t-guruplugdetails.aspx#block)
the tech specs say nothing specifically about Master mode (
http://www.marvell.com/products/wireless/8688.pdf), but the marketing blurb (
http://www.marvell.com/company/news/press_detail.html?releaseID=1237) does:
"The Marvell 88W8688 provides a Marvell mobile hotspot mode that can be used to transform any CE device with an Internet connection into a wireless hotspot; this feature is optimized for very low power consumption on battery-powered CE devices."
So the answer is probably yes. Probably ...