That [1100 RPM] seems a little out of wack to me also.
Why? That's only 18 1/3 revs/sec, compared to the 60ish of a two-pole motor. Nothing but a disk, magnets, and glue on that rotor. Balance it right and it should spin just fine.
Gives you 330 Hz if I've counted the coils and magnets right. Close to the 400 Hz of military aircraft equipment. High frequency and fast magnet motion means higher voltages and thus lower currents (and much lower I2R losses) for a given amount of power. That lets you have much more power from a given amount of copper and a given amount of stator heating.
330 Hz will be fine for old tech resistive loads (like incandescents and resistive heaters) and new tech raw rectifying switching systems (like switcher power supplies and compact fluorescents). Transformer-based stuff might work or not, depending on the particulars. (But forget about inductance-limited stuff like older fluorescent-lamp ballasts. No burnout, but no light either.)