These give a bit of protection and I also like the better grip.
The GF1 case is particularly good for this.
The E-P2 case is from pixlamb on ebay.
The GF1 case is from hoya world on ebay.
Both seem very well made with good thick leather.
Also got a 46mm metal lens hood for the 20mm f1.7
from Jack the Hat on ebay. Again an excellent product.
D & A