阅读理解 It's simply amazing what a cellphone can do these days．Teenagers know this better than anyone．They'll tell you their super-thin phones are really pocket-sized entertainment systems．They can listen to music, watch music videos, and play computer games．They can take photographs and send text messages to their friends．Business people know this, too．For them, cellphones are really high-tech business tools．They can review business documents and read e-mails．They can check their appointment calendar and get directions to a client's office． Welcome to the age of the“smartphone”．In less than five years, cellphones have developed far beyond their original function as a communication tool．And more features are being added all the time． Some consumers love to keep up with the changing technology．They're always eager to get the next must?have model．But all this change has left other people confused．Cellphone users often don't know all the features their phones include．Recent consumer surveys suggest that many people still only use their phones for talking and text messaging． TODAY'S FEATURES So what features do cellphones have these days?That depends on the model, of course．But standard features include a digital camera, MP3 player and PDA．Newer models also have video-recording capability．Some even have GPS．So if you need to know how to get somewhere, just check your phone for directions． Perhaps most importantly, some phones offer wireless Internet access．That means you can use your phone to read and send e-mail and browse the Web．You can download music, games and video files．You can even watch short“made-for-phone”dramas． TOMORROW'S FEATURES Even more powerful features are on the horizon．Someday soon your phone could also pay for your meals．A new technology would store your credit and bank account information on your cellphone．You could then use your phone much like a credit card．Use it to pay for a meal or purchase new clothes．Or better yet, buy that new cell phone you've been wanting． | 
