This has already been done by a string company called Guadalupe, readily available from Mainland ukuleles:
http://www.ukuleleunderground.com/forum/showthread.php?62861-Guadalupe-custom-baritone-strings
Except this is a low-G version.
I made a topic about it a while ago too:
http://www.ukuleleunderground.com/f...w-set-of-strings-before-YOU-GOTTA-TRY-THIS!-D
Overall impressions is that yes, it's certainly a unique, different tuning.
However, it has limitations when it comes to strumming (sounds too muddy), but is best suited to fingerpicking.
It sounds very nice in person in a room, but when you have it in any live playing situation (especially with other instruments), amplification is essential to be heard.
Physically, the notes are too low for the baritone's body size to fully support (technically, even DGBE tuning is too low for a Baritone body to ideally support).
I never really saw it as a corner-cut to not having to learn baritone chords, as I really don't think transitioning to baritone chord shapes is a challenge worth avoiding. In fact, being able to play baritone chord shapes is an advantage, as it is a different key to the regular uke, making it easier to play in some keys (eg: an uke's E chord is an easy-peasy "A-chord shape" on a baritone), and in the emergency situation where the only available instrument is a guitar, you'll be able to play one. It also makes playing instrumental/solo/improvisation in certain keys easier. You simply get a wider palette to work with.
With a bit of practice, playing in both keys comes very quickly and natural. I don't personally think we should discourage people from learning something new.
However, I like the low GCEA tuning for its unique place in the ukulele voicings. Mellow, warm and deep. It gives the ukulele some guitar-equivalent bass tones, while maintaining ukulele playability. Afterall, a baritone uke (DGBE) is still "like a guitar lacking the bass notes". However, DGBE-tuning and GCEA-tuning on baritones come with different playability, tone and feel - I keep one of each tuning for their pros and cons.