I used to have a SIM in my tablet that shared the data on my phone plan.
I changed plans from consumer to business and discovered a couple of weeks later that as a result the tablet now has no data connection because the company concerned did not tell me that if I changed to Business I could not share the data on a separate connection (but can by tethering, so...duh).
It's useful to me to be able to have the tablet independent of the phone sometimes so since I cannot get any sense from the current company (I spent no less than 90 minutes on the phone yesterday trying to!) I figure I will have to get a second independent SIM.
Wondered if anyone had any suggestions. Enough data for Skype, email, internet.