My business parter (Windows user) is really big on WebEx for sharing screens with each other. My understanding is that WebEx doesn't work on Macs. Zoho appears to work, as a Java or Flash client. What do y'all recommend for sharing screens (both ways) between his Windows machine and my Mac? Is Zoho's Java client the way to go? Or maybe there's another service/app that I'm not even aware of (I can always count on you guys for that stuff).