The naming thing is such a big issue and I don't see why everyone just keeps on getting it so wrong.

For an example, I bought a Sony Vaio laptop a few months ago. Great piece of kit and I love it, but trying to work out what to get was bewildering - there's 7 or 8 categories with single letter names - 'S-series, Y-series, Z-series, F-series' etc.

What do they mean? Which should I be looking at? I had to scour through comparing until I realised which one I should be looking at.

Compare that to Macbooks - you've got: Macbook (the standard, economical) Macbook Pro (high performance) Macbook Air (portable)

It's pretty clear to most people interested in buying a Macbook which one they should look at. Also relevant is the fact that Apple don't put too many versions out keeping things in well defined clusters.