It's really completely annoying.
I suggested Scalix to my boss and we have nothing but trouble with active sync.
An employee with a Windows Mobile 6 device totally messed up his calendar, because events he created on the mobile had completely wrong begin/end times on the server.
My boss, who is using his fully patched iphone 3gs constantly loses all his calendar data on the phone.
Come on, you really should state that this is a beta, rather than motivating corporate customers using this feature.
I'd say it's even dangerous at times.
Are those cirtical issues going to be resolved in ActiveSync that comes along with 1.5?