Using Technology during a test?

Edutopia recently posted an article about students using technology during a test.  Should they be able to access the information that they don't know using their cell phones and still get credit for understanding the information?  If students don't know the information should they be faulted for looking it up?  Why should they?  If they have the knowledge to find the information using technology then let them use it in the classroom for exams.  Do they really need to retain everything in this technology based world where we have done away with card catalogs and libraries are closing because we can now use technology and have the world at our finger tips?  I don't think students should be limited in their resources...if they have the knowledge to look it up then they should be getting credit for the answers on the test.