I like the carry case you have made and can see instances where it would be really handy to have but I have my phone encased in a 3 layer OTTER box to protect it from me more than anything else. The hard plastic cocoon with the screen protector affords shock resistance which is shrouded in a thick armored rubber making it concrete prof the holster can either be clipped to my belt or hung from a pocket in me trousers like a pager
I can relate with TM51's comment as well as Marv
The only thing I find my cell phone really good for is the camera though. I rarely use it for texting unless it is to a vendor when I am searching for a particular replacement part I can snap a picture and send it then call them and discuss what I am looking for. or for taking pictures of projects I am working on.