Cross-platform personal document management
I'd pay good money (like $100s one-time, or $100/year) for an application that allows cross-platform collection, reading, and searching of general documents, especially receipts (probably in PDF form), emails, notes, and other miscellaneous, largely-text items. I'm a document pack-rat, yet my existing collections can easily fit on a 16GB SDHC, and all my Android devices have room to hold 32GB or more cards for this data; i.e., I can make them portable. What I'd like to do (more efficiently than currently) is to carry around records of anything I might want to recall at a moment's notice (e.g., receipts to prove purchase or identify dates, threaded discussions on a topic, warranties to determine what to do if something breaks, etc.). I'd also want to maintain the portable collection on multiple devices and base it on one of my desktop (Linux) systems.
While there are thousands of applications that do bits and pieces of this for individual platforms, I've been unable to find any that take on the mission of collecting everything in a single place (at least without severe limitations in capability or platform-based functionality). Not only would this make it easier to find things without having to remember where it came from or what form it's in, it would also allow all these other limited apps to delete old data (many require this even to operate without crashing) while the separate collection maintains everything.
Bonuses would include:
* A mechanism to allow other apps to push selected documents to the collection (or have the collector pull them from the apps);
* Incorporating ebooks, images, and possibly music and videos (mostly to fetch their text info);
* Including links to open offline or online copies of special source documents, depending on where they're located;
* Select and transmit a document to another device (probably needs to wait for some industry standards for mobile transfer);
* Ability to use a local server (WebDAV?) for the central collection, rather than the inevitable cloud-based service (especially since much of the data would be personal, and cloud security is still almost as much an afterthought as comprehensible software manuals).
My interest is personal doc management, not the tremendously complex enterprise doc management that involves so much overhead (like reviews, approvals, de-duplication, and stuff justifiable by hundreds/thousands of users per database). Trying to use those tools for personal documents is like driving a nail with a jackhammer. Surely there are thousands of people (millions within a a few years, I predict) who would find this portable document collection useful enough to pay for its upkeep and improvement.
My preference is on Linux and Android systems, although I might also find Windows compatibility useful at times. (I'd expect any serious cross-platform system to include MacOS and iOS as well, but I wouldn't need to wait for them.) I'd insist on Linux vs. WINE-based Windows software, as I've never found WINE adequate without far too much investment in configuration and bug toleration. (Also, Linux now is either the *basis* of or very similar to every other major commercial stationary AND mobile platform except Microsoft Windows, so it's about time we get off our a**es and make Linux the starting point of any robust, new software.)
Does anyone have anything like this, or know about or working on such a thing? Thanks for any suggestions or efforts.