Wait until he gets it and then look at the apps available in the Apple Store. I have "Pages" and "Numbers" on my iPad (About £7 each) to replace my Office 2007 Word and Xcel. It may come with IWorks pre loaded. Sorry I don't know about software for burning, but I suspect there will be one pre loaded. If not Apps Store again?
Surface Pro 4 UK release date, price and specs: Thinner, lighter, faster with new Type Cover and Pen