Open it up and let a torrent client onto it and give it a file system manager and allow a hard drive to connect. You no longer need a mothership to hook it to. I have not read the entire thread but people seem to be using it as an extension of their Macs rather than as their main device. One so far can not live with out the other.
If anybody bought an iPad and used it out of the box with no other computer involved ever I would be interested to hear their thoughts.
My feeling is they won't allow a torrent client because the primary reason people use torrent files is to download illegal movies.* With Apple trying to partner with the studios, it's not a good look for Apple.
To your second point: I've had the iPP since February. I've connected it to a computer exactly once, to transfer some movies and if I'd thought it through a few more seconds, I could have used an SD card and the camera connection kit to import them. All my files and content sync via iCloud, Dropbox, and OneDrive. If I download a PDF from Safari I can save it to OneDrive, iCloud or open it in iBooks. If I download a .zip file, I can compress it in GoodReader and use GoodReader to shove it off to the correct App. Even on my Mac, I don't really even deal with files that I can't just email or share via a Dropbox link or something.
I consider myself a "pro" user on the iPP. I write, edit photos in Lightroom, draw, download files from the internet, work on stuff for my day job, and use it to play the guitar through and do some light recording. Are there walls I run into? Yeah, there are. But that list is damn small and I'll summarize it (I've linked to the longer pieces elsewhere in this thread) :
- I want to play World of Warcraft
- I need to edit a Tableau workbook
- I need to convert an ebook with Calibre
- I need to use a custom lightroom preset.
- Honorable mention: I want to get into iOS programming and I can't run Xcode on it. I don't have xcode installed on *any* device right now, so it's not a dealbreaker, yet.
Of those, the only one that really gets me is the Lighroom one, but Adobe is improving Lightroom Mobile a lot, and there's a workaround to some of the preset issue anyway. That's a software limitation, not an iOS limitation.
My mom has an iPad 3 that has never once been connected to a computer in the four years she's had it. The only reason I bought her a MacBook Air was she wanted to be able to print some stuff out and wanted something that wasn't her laptop [Edit: I mean iPad]. I'm not even sure how often she uses it.
My iPP 12.9 is my primary mobile device, and when it comes to hours spent working on it, it's probably my primary device.
*I know, I know, we all download nightly Linux distros. And if this is something important to you, get something like a Synology that you can install a torrent client on and control with the iPP.