Smartphone with good camera can do lot more things which you cannot imagine now. Yes With right software you can do lot more thing just take picture and video using handy Smartphone camera applications. Smartphone comes with good camera even comparable to your point of shoot camera. With lot of features and image editing options. Yes you can use these high quality camera for your business function as well instead of just taking the picture. Here you can find the good smartphone application and its usage.
Document Scanner : If you have the 3MP and above camera on your phone then you can use it as document scanner. Document scanner application will help you to scan the document and generate the PDF copies of document. You can get the crisp and clear result as like your conventional scanner. App to Try: DocScanner(iPhone, Android, Symbian)
Business Card Scanner: If you have the smartphone then you will never need to type in contact details again, Just scan business card and app will create the contact and update to your phone address book. Now it is not required to carry the business card wallet just scan and upload the contact details. Apps to try: WorldCard Mobile(iPhone and Android) and Business Card Reader(BlackBerry)
Note Taker: Handy smart phone application can be used to take then node. Some times you are busy not able to write the lengthy notes then you can simply open a handy application such as Evernote, take a photograph of whatever you wanted to write about like a presentation slide share the note you can write little about presentation also. Later you can share it with your desktop computer easily. Apps to try: Evernote Spingpad
Shopping Assistant: Handy application used while shopping, This application can give more information about a product, Just need to scan the bar code to get access to more details like price, more reviews. It will search the web if you provide the picture of the product. Only disadvantage is it will recognize branded products and it required the internet connection to get the quick result. Apps to try: ShopSavy(iPhone), Google Goggles(iPhone, Android)