I continue to rely on the iOS ecosystem because I find the old chiche is true - it just works. And it works well. The mail and calendar apps are critical for me, and the upcoming 'handoff' feature looks to be a treat too so I can easily transfer stuff from my Mac and my iPad! Other than that there aren't many specific reasons why I would use a Mac at work [iMac] and at home [MBP], other than the fact it's just a much nicer experience. I have discovered the Memory Clean app which is useful to remind me when I have too many things going on which slows down my machine.
I continue to rely on the same old tools. Evernote and dropbox are the hub of my productivity. Chrome is my portal to the web (I quite like the Google tools) even though I do really like the Apple-ness of Safari. Twitter is where to find me online despite my presence (but limited activity) on LinkedIn and G+ - still don't use Facebook a great deal.
I tried to use Apple Pages and Keynote, and whilst I do really like them, it's often more hassle to convert the outputs into .docx and .pptx files so others can access the files. They always require a touch of editing and actually, the drawing tools in Powerpoint are better than those in Keynote anyway.
In the past couple of years I have had to move away from Google Reader for obvious reasons. I loved the Reader App for iOS and having paid for them once, I was reasonably miffed that the upgrade required purchasing all over again. They are nice apps and I bought the iOS version but wasn't paying the £5+ for the desktop version, largely because I've managed reasonably well using Feedly (free).
What does this all mean? It possibly says more about me than it does the technology. But it does pose the questions - do we need the abundance of technology we have at our fingertips, and is there an optimum number of tools/apps for us?? Is there a lull in innovative new developments in software and apps?