It's actually not out of the realm of possibility--that's probably his upside. I do like Aminu, but I don't think we should be overly aggressive to trying to attain his services--we have young bigs in JT and Hawes already, and he's not quite a 31st pick, and it's not quite worth it to score another draft pick in the 40s just to see what he's about.
Like Andersen, Aminu's a low possession player who can't do much with the ball in his hands, and he doesn't get to the stripe as much as you'd like from an athlete of his caliber. But what he does well can easily translate to the NBA--he's a pretty good (but not excellent, and not at Chris Andersen levels) rebounder, a surprisingly prominent stealer and excellent shotblocker, although he has to gets into foul trouble quite a bit. So he's athletic and his athletic markers are nice particularly on the defensive end of the court, and sometimes that's all that's necessary to be a valuable roleplaying big man in thsi league. But it can go either way of course--a lot depends on his work ethic and the team that he goes to, and whether that team truly values his skills and gives him playing time accordingly. I'd say Chris Andersen is the upside, and the current version of Solomon Jones is the downside.