UPDATE: Michael Lee confirms the news with Booker's agent. He does have an NBA out.
If true, the team itself may not be a coincidence. As Tom Ziller notes, Ernie Grunfeld's son Dan played for Bnei Hasharon last season, though he is moving on to another team this year. The Israeli league is one of the stronger leagues in Europe, and many former NBA players or college prospects sign there. Jordan Farmar of the New Jersey Nets just signed with Maccabi Tel Aviv, the premier club team out there.
The terms of Booker's contract are not clear right now, though I'd imagine he'd have some sort of NBA opt-out in the deal (update: he does). I'll let you all know if I find out more information on this. Regardless, Booker would become one of a handful of players to move overseas if this report is true.