Storyteller01 said:
Geisha defense bugs me a bit. I like the idea, but I can't get past historic accounts to the contrary. Once someone took a swing they weren't harder to hit.
Have you looked at Rokugan's Courtier class? No spellcasting, but it seems appropriate. Lots of skills (including multiple opportunities to include cross class skills as class skills), the ability to roll Gather Info as part of a rumor mill, and a later level ability that (as long as you arn't armed or hostile) forces opponents to roll a save or refuse to attack you (makes more sense imho, and it's just one of several they have access to). You might be able to pick it apart and take what you need.
If it's open content, I can type a quick version for you in a few days provided you're interested.
I am not sure I understand your take on the Geisha Defense. It is just a dodge bonus based upon her ability to subtlety distract foes in combat. As she goes up in Geisha levels she gains a little more defensive ability - it could be called distraction by beauty, grace, dance moves, etc. I put in the CHA cap (like the similar Jester ability from DC1) to reflect that it is partially based on her ability to have a striking presence (ie CHA).
I like the Courtier class. It has its place, but it strikes me as more of a politician or aristocrat, than a performer. I did look very closely at the Gossip/Gather Info skills of the class for the possibility of using aspects of it.
Ultimately, as I described a little above, I thought the Geisha would be more similar to standard bards with their Bard Knowledge ability (based on reading poetry, epic stories, classic songs, etc), with only a minor focus on true gossip. The net effect may be similar, but it is gathered differently. Courtiers actively gather intel, make contacts, grease some palms, etc. while the Geisha innocently (or maybe not so innocently) overhears tidbits of info while doing her 'personal escort' or performance roles. Much business transacts while in the Tea House, and the Geisha may be privy to portions that the patrons unwittingly discuss.
A smart or crafty Geisha would have many Courtier clients (as well as powerful Samurai and Daimyo) to aid info gathering, especially if she deals on the side with information brokering.
I do want to be clear that I did not design the class as some sort of covert cover for other activities, whether Court Spy, Ninja Assassin, or similar endeavors. The class is for entertainers (albeit with some thought on integration into adventuring parties). Multiclassing is probably what is needed to serve these slightly associated functions. I can envision specialized PRC's that address these aspects or bridge some multiclass options. An Okiya would probably make a very good cover operation for a Clan of Female Ninja Operatives.