Re: "When it's political, technology cannot do anything."
Agree with all the above comments about 800 apps not being that surprising. I'm currently working for a Housing Association (think the equivalent of the councils social housing division and maybe some of their 'care & support' and we have catalogued 300 odd applications (I don't know how many are thick Windows client off the top of my head).
Everything from desktop office software, environmental noise software, other environmental software (air, water quality for example), the stuff that manages access to buildings, lifting gear service compliance management software, gas compliance, electrical compliance, asbestos compliance, everything else compliance, new build project software, repairs and maintenance management (about 6 of these), a number of customer service apps (CRM), the usual HR suite, the usual finance suite, the usual IT management suite, telephony systems, CCTV systems, cashless payment systems, the usual marketing stuff, I could go on and on and on. I've never (well, very brief stint at Cheshire County Council years ago) worked in this industry before and its been an education. Theres loads of duplication and failure to use things to their potential I agree. There's a 5 year plan to sort that out.
Anyway - I audited this stuff and theres not a single Linux thick client app for any of the thick client stuff. Except perhaps some of the IT systems management software (just starting to audit this).
Why? Theres no demand. People expect a Windows client so thats what gets developed. You want a Linux version then you pay to get it developed. And then you pay for the business readiness for the switch over. And then you pay for the user training. And then you pay the ongoing maintenace/dev costs for something you could have bought a Windows version off the shelf.
And then you have to have every single one of these apps ready to go for when you switch peoples desktops over to Linux.
We're locked in. Unless every app runs in the cloud and you use it via a browser. Just have to suck that one up.