...Essentially, I'd get a similar screen to what I have here with the blog posts page. There would be a listing of feeds, and clicking on the title to it would expand the item so that I could read the entire thing. At the bottom of the post would be the ability to add a note, blog it, or mark it public - see, this only works when I can share
This would be a new content stream for the site, so it would have its own RSS feed, but also be combined within the MWS's content feed (optionally of course).
It would need to be its own widget though. This only would work if I didn't have to take the extra step of browsing to my MWS to access it. In my mind, this works out to be something like the AccuWeather widget - a smaller version on the homescreen that shows the latest feeds, and then something behind it that's a bit larger in viewing (its a web page) but connected to the MWS. Ideally, going into the bigger view would also give me a shortcut to the MWS application on the device.
This is an RSS reader, so like others, I'd need to be able to add files. There would also need to be an extension for it - one for desktop/laptop browsers and the other for the mobile's browser. For the former, this extension would simply authenticate you to your MWS, and then using some kind of "send to MWS Bookmarks" function to have it appear in Bookmarks. On the side of the mobile, you'd like to have some additional option in the browser to do the same "send to Bookmarks" feature, but this would be like the MWS's Blog post function in that it could post to Bookmarks even when the MWS isn't online.
I'd have the sharing aspect work something like Addthis.com's widget - maybe even using this widget since they've already got the tech developed.
After that, its just a matter of going to any browser, and opening your bookmarks to read them - if they were more like RSS feeds - or going to them when you've found a new item and wanted to save and annotate about it. And if its really good, you click the checkbox at the end of your annotation which says "blog this" and it would also appear on your MWS blog (same entry just appearing in two places)...