Looks like he's wanted by a lot of clubs. Dutch media reported two weeks ago that PSV Eindhoven and Feyenoord sent their scouts to watch him and they were very impressed.
Had a look on an Aachen forum and they really seem to rate him on there. This week it looked like a certainty that he'd join Schalke for €1.5m. He apparently told Aachen today, that he wants to leave at the end of the season and there's also lots of interest in him from Bundesliga outfits. Schalke, Leverkussen, Wolfsburg and Hoffenheim to name a few.
Nothing mentioned in the articles about Arsenal and Man Utd though. Also nothing about his supposed love for Everton. Looks like he's a good prospect and for €1.5m he's worth a risk.