How big retailers measure up on mobile response time (in seconds)
RetaileriPhone (3 carriers)
BarnesandNoble.com5.16
Sears.com5.67
Williams-Sonoma.com5.78
OfficeDepot.com5.84
Blockbuster.com6.08
Buy.com7.29
Overstock.com7.93
Drugstore.com8.22
BestBuy.com8.35
Amazon.com8.80
VictoriasSecret.com8.85
OfficeMax.com9.08
JCPenney.com9.76
LLBean.com9.86
HSN.com9.88
HomeDepot.com10.42
Target.com10.78
Walmart.com11.38
Newegg.com11.46
Saks.com11.60

Gomez collected iPhone measurements for mobile sites on the following carriers: AT&T, Sprint and Verizon Wireless. Gomez measured response time as the end-to-end time elapsed while downloading each mobile site.