If you look at how this product works, it makes sense to use it for cleaning a keyboard.
I on the other hand, have a different take.
Take note specifically of the VERY CAREFUL wording they use.
namely,
physically removes 99.999% of harmful particles
which is completely dependent on what you define as a harmful particle. it seems to explicitly avoid saying "germs" or "bacteria" which implies that it really doesn't do a bloody thing to them.
Also, more interesting wording-
Catches dirt and harmful particles!
Visibly removes dust and crumbs, penetrates in cavities and cleans where conventional cleaners fail.
which finally defines (if only in a loose and implied sense) what they regard as harmful particles. apparently, crumbs and dust are considered harmful. I suppose they could be in certain cases. Still no mention of germs or bacteria, this would be an ideal time to set our minds at ease and say "yes, despite not mentioning and even avoiding saying it, we do clean germs and bacteria from things".
Looking closer at the site and their "instructions" the product appears to be silly putty. Or at least some bastardized form of silly putty. They put strong emphasis that the product has a "pH" level different from neutral, as if it's notable in killing germs. Considering it takes about 30 seconds to kill most germs with direct contact to hydrochloric acid, even if it does have a different pH level I can't see what possible effect it would have. especially when the video doesn't show the stuff being in contact with any surface more more then about a second. And it certainly doesn't show the users skin peeling off or their flesh being eaten away. On the other hand, they really missed an opportunity to capitalize truly on the different Ph level, by calling the product Silly pHutty. Oh well.
They also seem particularly proud of the fact that they use a "swiss formula". I've never quite understood companies need to label a formula as if it's from some country, or why they predominantly choose "swiss" for almost everything. You don't see "patented German formula" or "patented Australian Formula" very often, and usually when it does appear that country has some sort of connection with the product. they might say "Patented Australian formula" for a Dingo or kangaroo repellent... but we all know how well the swiss are know for their cleaning agents and so forth which is, not at all, to my understanding They mostly seem known for their high quality watches and conversely low quality furniture.for some reason, they decided to put this declaration of swiss origin in quotes, which seems a little curious. "well, tom in marketing <said> it was a swiss formula, but nobody really knows. we just wanted something catchy that was at least big enough to cover up where the weird blob guy's torso disappears... we didn't think of using patent until after we had already saved the file as a jpg and deleted the PSD, so oh well."
Also, IMO it doesn't make sense for cleaning a keyboard. if you look closely, you'll notice that most keys form the approximate shape of a cut pyramid (trapezoidal prism, I think they might be called) Sure, the product might pick up crud from directly beneath the gaps between the keys, but it certainly doesn't expand to fill up the entire empty space underneath the keys, which is where most crud hides eventually. And if it did you would just be ripping of a bit of it and leaving both the crud and a large chunk of the product underneath the keyboard.