Top 10 eco gadgets for executives

What do you buy the executive who has everything? Green gadgets that cut energy aren't a bad place to start, as they'll help save money in the office and increase independence on the move. We've rounded up the top 10 choices for today's conscientious businessman, from a solar briefcase to life-like video conferencing.

1 Pocket solar power
While the tendency for phone manufacturers to cram ever more functionality into mobiles has helped gadget freaks cut down the number of gadgets they carry, that smart phone in your pocket still sucks down the energy.

Fortunately, there's a Solio, shown here, can power all the standard gadgets -- MP3 players, phones, portable games consoles -- at the same rate as having it plugged into a conventional plug socket.