I'd say her appeal - whatever in heaven's name it ever was - is wearing thin. It's diffficult to judge, though - the hopeless case usually goes as soon as someone really good is voted out and, while I personally liked Jimi a lot, I don't think it was quite enough of a shock to annoy the casual viewers into using their votes a bit more thoughtfully.
I know the best dancer hasn't always won by any means, but dance ability does play an increasingly important role as the series progresses and the winner has always at least had some sort of... no, sorry, won't inflict the J-word on you... but you know what I mean!
She'll go when it comes down to Ann, Kara, Matt, Scott and Pamela, if not before - pleeease. If not that scenario, she'll go the week after one of them does. Or I lose my last remaining shreds of faith in the GBP and it's renowned sense of fair play.