Bad ones.
I wasn't going to reply to the "anti Jack Sprat sentiment," because to be honest it is well founded. Although the problem is a bad flash chip in the T3, installing Jack Sprat HAS CAUSED problems for people, so in that regard SOS is absolutely correct. Whether it's software or a glitch in hardware, "white screen of death" is no good for anyone. The fine points are irrelevant.
As for INVISIBLE, let me tell you that I tried it -- twice. The first time caused consecutive fatals and resetting. Then an "upgrade" became available and I tried that.
Bad results there too. Changing too many items at once will crash the T3. Also, make sure you do not indicate "hide Invisible itself," as well "hide even after reset" or you'll have to reinstall Invisible to put back what you've hidden, and hope that that's possible. It's a small but very INVASIVE application, and I get by by having a separate category for the "junk" called ZDeadZone, so it's last alphabetically. They're "hidden" enough at that point.
Invisible seemed like a terrific idea but caused me problems.
As for Jack Sprat (a real solution to the problem of REMOVAL, if you're willing to "dance with the devil"), I'm one of the "Sprat Lovers;" it worked like a charm for me and I've been using it on two Palms for two years. Beta 3.0beta4 is MUCH more stable than beta 3, which had the problems with the T3 flash chip. The final version is not done yet and I've been checking daily for the last 2.5 months; you might want to wait until then -- but then ALL non-English languages could be removed giving you 4MB of additional "room," should you use JackFlash to access it. I also removed QuickTour, Welcome, RealPlayer, VersaMail, Photos, Calc and other odds and ends, and freed up 10MB - 1.3MB of which I have still free. 55 Applications now running in Flash with NO PROBLEMS. Remember to install "JackSafe" first, and that way after a HARD RESET all those apps will come back just like they were "installed at the factory." It's saved me twice, and results in my having TWO CardBackup files amounting to 8MB TOTAL instead of 26MB.
It is not a game, not really for beginners, and "you have been warned" is actually very appropriate language -- it should come with a warning. Unfortunately, if 2 people don't follow directions or back up properly, they cause a tidal wave of "negative press" which prevents, in my view, qualified users from benefitting.
Even if you were to REMOVE only, using Sprat, and be done with it (not incorporate the flash for other apps, like the UPGRADED Docs2Go and UPGRADED Kinoma), at least your system is cleaner. My reason was Docs2Go was in ROM and the updates went in to RAM, giving me 2 copies. That would now apply to Kinoma Player as well. That's just silly.
For the record, I was one of the ones "stung" by 3.0beta 3 - had to reflash the entire ROM, had to let the battery completely die overnight to force a shutdown, and start all over again. I had purchased the Beta -- and IMMEDIATELY downloaded the next "mostly fixed" beta and did it again. Guess I'm committed to the product. I would NEVER EVER EVER be without it on a handheld of less than 128 MB. If OS6 sports that, well then I'd reconsider -- unless apps are duplicated in ROM and RAM. I just can't stomach that. You should have control over what's on your handheld -- if you don't need the extra languages there should be a facility with which to eradicate them. JackSprat is the only one -- dangerous as it may be -- that has answered that call.