Even though I have not kept up with Tony Fletcher's writing lately, I crossed path with him or rather his site iJamming while getting an education on wines from Mallorca.
He had the chance to be on the island in 2007 and shared his impressions on the local juice in Featured Wine Region: Mallorca (February 2007).
If you set foot on the island, a good place to start it seems (from his piece) is Lodivino in Palma de Mallorca (see snapshot below, from their site).
He warns us that you might have to walk through a cloud of smoke to get a taste of local greats.
The place seems more than a wine bar more like these Parisian cafes of the late 40's, early 50's with Jazz and cigarettes.
Tony' s conclusion on the wines from Mallorca:
do have personality. Those that contain the indigenous grapes Manto
Negra and Callet, in whatever unspecified quantity, are unique, and the
two blended bottles I brought home with me were fine red wines for cold
winter nights. Mallorca may soon become more than just a holiday isle,
but a new destination on the wine traveler’s global map. Let’s just
hope the island’s producers remember their roots and keep working those
local vines."
Related: Mallorca, Beaches, Parties and Wines like this Mantonegro