Actually, you can't use attunement with matrix actions at all. AR gloves are an electronic interface. You are still using Program+Skill for matrix actions.
Attunement (Item) provides a dice pool modifier to any skill tests involving use, control, or handling of the item equal to half the character’s initiate grade (rounded up). Attunement, however, provides no bonus when the item is controlled through an electronic interface (be it digital, VR, AR, or DNI), nor does it work on the complex magical auras of foci, prepared vessels, or enchanted items. Attunement also provides no bonus to Active Magical skills.
Really, there aren't any metamagics that lend themselves to matrix actions, further enforcing the idea that magic and tech don't get along. However, there are a few adept powers that could help a hacking adept. Improved Ability, Enhanced Perception, Analytics, Linguistics, Multi-tasking, and Sustenance could all be useful to an adept hacker. Or you could go with powers that help the adept get out of trouble when trouble starts, such as Freefall or Gliding. But the hacking adept will still rely almost entirely on their skills and programs. However, since adepts have less of a BP drain than, say, Magicians, it is a lot easier to do a hacker adept than it is a hacker mage.
