Do technomancers benefit from the Encephalon or Simsense Booster cyberware?
Yes. In the case of the Encephalon, the bonus to Active Skills linked to Logic also applies to the Technomancer-only versions of these skills (Technomancer Skills, p.239, SR4A); this also applies to similar bonuses from the PuSHeD genetech or the Neocortical Neural Amplifiers nanotech. The Simsense Booster grants the technomancer an additional Intiative Pass (since they are in Hot Sim VR), but still limits them to 4 Matrix IPs; in other words a technomancer cannot take a Simsense Booster and the Overclock echo to gain 5 IPs in the Matrix.