Whether you're a tech geek, or like many, a real estate professional who wants to learn enough about technology to make good use of it in their business, you are probably using several tech tools now to make yourself more mobile. Tell us the good and the bad about your tech purchases for mobility, like computers, netbooks, cell phones, smart phones, digital cameras, printers, etc. It helps a lot of people if you can share what works, what doesn't, and what wasn't worth the money. And URL's are OK.