Founded by three PayPal alumni. Later purchased by Google.
Yes. But Google also keeps the Maps squarely server-side, making them rather useless when you need them most: off road, or in a middle of nowhere where there is no signal.
Moot. There are tons of alternatives.
... Considering to how functionally-limited GMail always was (folders anyone? saved searches? mass operations?) and how they keep screwing up the UI... I doubt it GMail fame would be worth mention in few years.
There are several alternatives. Skype pops to mind immediately.
Obihai is not a Google product.
Originally developed by Android Inc. Later purchased by Google.
I'm sure I could go on, but [...]
Oh, please, do go on. Enlighten us.