Re: "[WP8] is well liked by its users."
Some of those are valid points and things that annoy me, although some have been resolved or at least are good enough to hardly warrant inclusion on a list.
Cellular data on Wifi...? Well don't all smartphones by their nature? Network operators only allow access to some resource (say payment of apps by your mobile bill) via their own infrastructure. Download of apps, syncing emails, browsing the web, streaming media etc. all happen over Wifi when connected.
Don't want cloud, don't use it. My mates have WP handsets and don't use Skydrive or Facebook. They don't have any accounts setup on their handset other than the mandatory Windows Live account. (Apple ID / Google account)
There is a file explorer. Not quite the whole system but all user data is accessible via USB share.
You can sideload applications if you want. Sideloading keys are on MS's website. We use them at my workplace for our in-house applications.
Well yeah, there's no syncing between Outlook client and the handset directly.... but wasn't that always a bit shit? Personally I think it makes more sense to have the handset sync with the mail server, and your desktop also sync's with the server. No dicking about with clients for various mail apps (If MS did one for Outlook would you then be complaining about Thunderbird not having a client). Bit of a non-issue as you can easily setup what you WANT regardless if there is a direct sync or not. In this day and age I would suggest more people keep their email on an email server centrally (e.g. Gmail, Outlook, Yahoo! etc.) and therefore clients that talk using IMAP or ActiveSync to the server is the most logical step.
If you want to know what data you've downloaded then try the Counters app from Nokia. There's dozens out there that will do what you want for free.
Well true - you can't uninstall the calendar or calculator - but other than rooting your Droid what handset can you uninstall SYSTEM applications from? You can remove any application outside of what MS have baked into the OS, so any crap from your network provider or 3rd party guff. Compared to Android it's a breath of fresh air.
I can download whatever I want. No idea what you mean.
I can send photo's over Bluetooth fine.
Rest of the points I agree with.