Has anyone tried the "majic" USB power adapter for charging??

[pls]

I saw a vidio on this forum about an adapter extsion cable that allowes you to fully charge your galixy tab through any USB port. They say it will work just like the OEM wall charger.
Has Anyone had any experience or heard anything about them? It was a company called Tablets4me that made the vidio. I would really like to be able to charge my tab in my vehicle while travelling.

 

[jgm]

I bought something similar on Ebay for $6.50 (2 in 1 USB Data Charging Cable for Samsung Galaxy Tab 10.1 )
It works great, I use it all the time. There is a button to switch from data to charge.