Melvin Hughes, a homeless man hired by BBH Labs to provide and promote a mobile 4G Wi-i service during SXSW, holds the T-shirt he was given by the marketing agency in Austin, Texas on Tuesday, March 13, 2012. Hughes said he was paid $20 for each six-hour shift over four days this past weekend and he may receive extra money if those who used the online 4G service made a donation.(AP Photo/Jack Plunkett)

Associated Press
Melvin Hughes, a homeless man hired by BBH Labs to provide and promote a mobile 4G Wi-i service during SXSW, holds the T-shirt he was given by the marketing agency in Austin, Texas on Tuesday, March 13, 2012. Hughes said he was paid $20 for each six-hour shift over four days this past weekend and he may receive extra money if those who used the online 4G service made a donation.(AP Photo/Jack Plunkett)
Melvin Hughes, a homeless man hired by BBH Labs to provide and promote a mobile 4G Wi-i service during SXSW, holds the T-shirt he was given by the marketing agency in Austin, Texas on Tuesday, March 13, 2012. Hughes said he was paid $20 for each six-hour shift over four days this past weekend and he may receive extra money if those who used the online 4G service made a donation.(AP Photo/Jack Plunkett)
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