Murky and Incomprehensible: Can anyone surf one of the Android sites and figure out WTF plans you actually need to run these phones and what it will cost per year? It's worse than buying a house. I'd rather try to figure out the federal deficit.
Do you go to symbian.com to find information about plans for smartphones running Symbian? If you want to know you should go to the carrier's website, not the phone OS's website or the phone manufacturer's website. If you have a problem with the carrier's website that's alright, but no need to blame Android for that. It probably sucked before Android.
Risky: I keep reading these stories about people who traveled and came home to discover a phone bill larger than my annual salary. Sorry, but I am not going to risk my financial well-being to own a whizzy phone..
This can happen with any smartphone. If you roam and use the data connection it gets expensive. There is an option in the phone called 'Disable Data Roaming.' It has been there since day one, and anyone who racked up huge charges obviously did not check this box before they left the country.