The Navigator module in unrelated.
It's just that I usually keep it plugged.

However, OSLauncher actually existed for real: It was just released weeks later :p

Nope
I started developing OSLauncher, as an independent reimplementation of the unreleased RunOS, after the April Fools prank

EDIT: I took your post's meaning to be "Cependant, OSLauncher existait vraiment [déjà, au moment du poisson d'avril]: il a simplement été publié quelques semaines plus tard". Juju indicates me that you probably didn't mean that OSLauncher existed (was already in development) before the April fools joke, i.e. probably something along the lines of "Cependant, OSLauncher a fini par exister réellement: il a simplement été publié quelques mois plus tard". Apologies for my possible misunderstanding, and the original form of the reply.

I don't think Lionel is lying. I often argue with him, mostly about the behaviour coders should get in front of TI blocking Ndless, but I never saw him lie.
And he always put smileys like "" or "", as I always put smileys like "", I don't think it was meant to be naughty.

I wasn't refering to OSLauncher/nLaunch only, but also every single occurence where we interacted with each others in the past 2 years. In fact, it even happened before.

Example: In 2010, after numerous incidents between me and TI-BANK, I decided to use English as a mean of communication for most conversations with people from France, including yourself, in order to reduce risks of misunderstandings resulting from the heavier difference between Quebec and France slang compared to English as a second language. I later stated it publicly, then you outright embarrassed me by denying that any of our convos occured in English, even though all private ones we had at that point occured in English (in fact, afterward, we discussed in French only on May 4th and 30th 2011). Forums don't count, because we have to use them in the language they're meant to be.

This is an old story, but you do this everytime and if it isn't for the sole purpose of embarrassing people, then I don't know what it is.  For today's instance I'll give you the benefit of the doubt, though, in case it's part of an 4-1 prank, but if I am really wrong, then on April 2nd I would prefer to confirm it with a different TI-Planet admin who was involved with the previous prank. For now the issue is closed: I'm just taking any denying from you with a grain of salt from now on.

EDIT: Just noticed your previous edit: Actually I wasn't sure if OSLauncher was already being developed at the time the joke was posted, but I did remember that when it was finally flagged as a prank, the news said that it was actually gonna be real soon, implying that it was either being developed or was gonna be developed soon.

Back on topic:

CX CAS OS on non-CAS CX:

What's with the green bars above the screen?

It's a trap!

Or he's got an early CAS version w/ CAS under the letters... Would explain why he doesn't show the keypad.

The TI-Nspire CX Premium doesn't look like that at all.

Shhhhhhhhhhh ! Now everyone will know you have one !
At least I haven't posted any photos about my prototype...