Dr Wolpaw is quick to point out that these early devices are all slow and stumbling.
Of course, there are still many many stumbling blocks to all this.
The stumbling performance of all the BRICS minus China is what has led investors to home in on the next wave of emerging markets, especially the highly populated countries such as Nigeria, Turkey and Mexico.
The results, though, are people confused by the gestures or not using them at all while the experts are stuck stumbling through unnecessary steps to do what they need to do.
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There are plenty of stumbling-blocks, not all to do with Iraq.
Kennedy International Airport, to limit all airlines to two runways was a major stumbling block in the company's efforts to get back on track.
The fact that he was stumbling as he made the catch made it all the more violent.
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The resulting stories have all commented on how Walmart and other big foreign retailers are stumbling in China as they struggle to compete with local competitors.
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The standoff between France and Germany is now the biggest stumbling block to solving the eurozone crisis once and for all.
Just a few years ago, card companies were stumbling over each other to woo new accounts, offering all sorts of incentives, like zero-interest periods and lavish rewards programs, to get people to sign up.
Sutherland recently told Jay Leno the script (written by " 24" scribe Howard Gordon and " The Hunger Games'" Billy Ray) was all systems go, though he admitted scheduling had become the most recent stumbling block.
There are 40 people standing around looking at me, all trying to make this camera work so they can take picture of me stumbling through a yard.
Second, a stumbling block could emerge from ICANN's efforts to hold an open and fair election among all Internet users to choose nine new members for its 19-member board.
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