Is it: smartphone, smart-phone or smart phone?

　　With a hyphen, a space, or as one word?

　　This is an example of a technological term which has recently entered the English language. Others are:

　　Website, email, webpage

　　What often happens with technological terms is that when they first appear, they have a hyphen or space:

　　Web-site, e-mail, web-page

　　Over time, as people get used the concept and word, the hyphen tends to disappear!

　　But is it smart phone, smart-phone or smartphone? Listen to the programme to find out the answer.