Sena Ultraslim I received my Sena Ultraslim Black iPhone 4 case today - dispatch and delivery was very quick - dispatched 2nd July arrived AM on the 5th July in the UK - considering one of those days was a Sunday that is a good delivery time via international FedEx. The case is basically a perfect slip case - its form factor is small - it adds zero bulk, in fact arguments could be made that it makes the phone look smaller - black is slimming! It is a tight fit - although mine fits in with a Zagg invisible shield and vinyl side stickers from luckylabs The case has 6 small holes on either side of the case to allow the ringers etc to be heard (these can be seen in the photos above). The case has Sena branding on one side, the other is blank (pictured) Overall the ultraslim is a classy looking slip case - if you want a slip case - the Sena is decent value and a quality leather case with a small form factor and given the colour options, you should be able to find something to your tastes. I own a bumper as well and will alternate with the Ultraslim - the Sena allows me to use the phone as apple intended (no case) and still have it protected from bumps and bruises in transit. Vinyl antenna stickers I got these from luckylabs on etsy - 3 sets of them for $9 - they also allowed me to mix and match colours so I got a white, green and a red set. The holes are all pre cut and they have done an excellent job. Each set comes in 3 pieces and basically run from each dividing black line on the iPhone's antenna to the next - this seems to make the most design sense and makes installation a breeze. I bought these stickers for cosmetic reasons only - I wanted my phone to look a little different - OEM+ however on the signal issue - I haven't had issue with dropping calls etc but for me the stickers make it much more difficult to make the bars drop - not sure why you would want to do this - but for testing purposes, with the stickers on I had to suffocate the phone to get the bars to go down.