Just got the sleeve today.
The sleeve has audio ducts so you can still use the built in mic and speaker. Sounds the same to me...maybe slighty muted.
The manual notes that the sleeves cf slot wont work when the sleeves battery is discharged even if the battery in the z itself is fully charged.
The nice suprise for me is the serial port on the top left side of the sleeve, which will let me use it and the keyboard at the same time I use it. I dont know yet if its a second port or just an extension of the port on the Z.
Also nice is that with the sleeve I dont think I will accidently turn the Z off so much.
