Demo Spring 2010 kicks off

At this year's Demo Spring conference, which closed Tuesday, many of the new services that were launched attempt to solve nagging problems.

Solutions for signing and faxing back documents without owning a fax machine, finding lost gadgets, or trying to type on a mobile phone's on-screen keyboard, were all targeted by companies as easy fixes. That is, if people are willing to buy into what are often proprietary systems.

In the photos that follow, you'll see companies old and new showing off their latest products, as well as a few memorable moments.