In Swedish it’s pretty common to mix in English terms. I guess a lot of languages does this, with mixed results.
I remember an old site called Smurfalizer where you’d enter a webadress and it would take you to the site but replace a bunch of words with “smurf”. It would be funny with a site that’d replace Swedish some words with English, basically turning the site into “Swenglish”. Like saying “email” instead of “epost”.
Update 2011-01-26: It would be fun to do it the other way around too. Translate Swenglish into proper Swedish, like “pipeline” (as in “det ligger i pipelinen”) to “rörledning”.