Ah, well that's the question, isn't it?
At the start of last season he was hugely impressive, banging them in all over the shop and becoming (statistically at least) one of the best strikers anywhere, in the process attracting the attention of some of the top clubs in Europe. But then he went spectacularly off the boil, and when his loan spell at the Latics ended he returned quietly to Zamalek, his Egyptian club.
What we do know is he started behaving in an incredibly unprofessional manner (as capoeirista alluded to a few posts back), including returning late from international duty on a number of occasions and generally being a bit of a tit.
So this is our quandary he's undoubtedly a fine player, with a past record of scoring goals for a lower ranked Premier League club. It therefore follows that he should be a fine acquisition for us, assuming that he's got his head sorted out. The problem is of course that Brown has a past record of his own of falling out with certain players, and if player and manager become embroiled in a spat then we're not likely to see the best of Zaki to say the least.
One further thing that does concern me is that Zaki apparently turned down a move to Portsmouth last month, the reason he allegedly cited was that he wouldn't sign for a team which contained Algerian or Israeli players, nor one managed by an Israeli (Avram Grant had taken over by this point). If this is true, then it's not exactly the sort of thinking you want at the club to say the least, especially that we have an Algerian Kamel Ghilas here already.
As I say, the guy seems to be a bit of a tit but he could be the tit that scores the goals to keep us up...