Yes, there's an Unlimited Choice. Still get the 22GB of data before possible throttling but you are limited to 3MB connection speed, no hot spot capability standard def video at 1.5Mbps are a few of the differences I see, besides costing less.
Those restrictions are for the wireless phone. Each tablet you register (maybe there's a limit on how many) gets its own data count and if you're on Unlimited Plus on your wireless phone, they call it Unlimited but also have '1 GB' per month and the speed you get is normal. Am on the 50 plan for Internet and get that on the laptop (burst mode 866.5Mbps but of course capped at about 50 Mbps, and on my 4 year old tablet it's 300Mbps, usually. Also, it's in HD. I really don't use the phone for heavy duty Net streaming but one thing I like is that this plan comes with 10GB Internet Sharing or hotspot - useful when the power goes out in our neighborhood.
This also -- at least for the current 2-yr plan I'm on (Directv/Internet/Landline) -- comes with a $25 discount off Directv "for life" when you're on the Unlimited Plus plan. So the total cost for the 3-feature-combo per month here is now $65/mo for "Select" plan of about 150 channels. It costs more for the premium sports channels though.