It cannot be emphasized enough how useful it is to be able to catch all outgoing e-mail from a system when you are developing and testing e-mail based functionality. This small guide shows you how I typically setup a Postfix/Dovecot combo for my local development environment that will route all e-mail being sent from your computer, to a local user account.
The trend has been going on for quite a while and it will continue. That is, the usage of mobile devices in various sizes are increasingly being used to browse the web for every day that goes by. For most, but not all, a mobile friendly view of a company site is a must. I been fortunate enough to be able to work on three different paths to get there and seen some of the good and bad in them.