I finally tried this, got a palm treo 850 via ebay and signed up with Sprint2boost.com and the guy over there is extremely helpful, it turns out my palm I got for $23 was already modified to be used on Cricket and so Shane from Sprint2Boost helped me through via email (plus me nosing around online found a way to do it) but Shane was there throughout. So finally got it up and running with wmwifirouter (tested the trial) it works well, a bit slower than mywi though... (I can't use mywi anymore as my iphone is now using the beta ios5 7, which is having a hardtime when tried to jailbreak, and yes, I'm a developer).
So, ipad2 and iphone does connect with the phone, but not with HP Touchpad, they are not compatible with advoc type network 🙁
Now that was done, I'm going to cancel my mifi device and use this instead, cheaper. 🙂
AS for the option to check off for web access it's shows in your boost account, when you click on change plan and it shows there, disable it and then save.