Her forehand is shockingly bad and she would need to put in a lot of work to get it fixed, and I guess she's not willing to do it. So it doesn't make much sense to keep playing for much longer.
And again her mind doesn't seem to be in it either.
if shes not committed to the game she should retire
Ayumi Morita Singles: 2008 - $50,000 Tokyo; $50,000 Kolkata; $75,000+H Toyota; 2007 - $25,000 Kurume
2006 - $25,000 Tokachi; $50,000 Tokyo Doubles: 2007 - $50,000 Gifu (w/ Ai Sugiyama); $50,000 Fukuoka (w/ A. Yonemura) "My dream is to become a top ten player."
She doesn't really care about tennis anymore.
That's not a 'bad' thing, really. It's just that she lacks the motivation to succeed since winning a Slam.
Bye bye Kim, see you in the announcers booth in 07.