A current bugbear:

The insinuation that making something else in a product class that is already established is automatically competitive.

The HP TouchPad is the new iPad competitor.
Google Plus is the new Facebook competitor.
Keynoir is a Groupon competitor.

And so on.

Switch out competitor for clone and you’re more than halfway there.

You’ll notice it’s most prevalent in services that have one dominant leader and lots of copycats springing up to copy their user experience verbatim.

Cloning is the work of business people attempting to run creative businesses. Watch out for them.

NB. Cloning and copying, as any interface designer will tell you, are not necessarily the same thing.