Or even something as advanced as the backwards apostrophe. My other half's friend (who, by the way, has been an iPhone user since day 1 and has never had another "smartphone", so I assume she was a profficient user of said platform) was coming for a visit and we spent an hour trying to figure out how to type my WiFi password on her phone. Even attaching the phone to my PC as a USB storage and copying the text file with the password proved problematic. I ended up having to text her the password. Yes, in an SMS: a 30 years old technology FTW.

I must be terribly old-fashioned but for me the whole point of a communication medium is... communication. What's the point of Google talk, Nokia talk, Whatsit or one of 19500 copycats if no one I know and care about use those services? The only IM service I ever use is Skype because no one I know jumps to the new trendy service every time one appears. Fortunately Skype works on my N900 pretty well.