Create a logo for a software application

I am looking for a logo to be created for my software application. The application is called 'TagIT'. The application is based on Near Field Communication (NFC) technology and allows people to use their NFC enabled mobile phone to display information. The application will be used in two different industry settings; retail & tourism. In retail, users can hold their phone near a product on a sale and get information about that product displayed on their phone. In tourism, users can hold their phone near a historical site (e.g. a statue) and get historical information about that site displayed on their phone. With the above in mind I would like a logo created for the application. I am open to suggestions about how it couls look.