[wooster]

From the review martey linked (http://paulstamatiou.com/review-att-3g-microcell), it looks like the price is currently either a one time $150 payment or $50 + $20/month for unlimited calls while connected to the femtocell. That seems really reasonable to me, and I'd love to get one of them (in my apartment in SF, where I have extremely spotty reception from AT&T).

[blhack]

If it were $150 one-time I would buy one today. Sadly, they are not available in my area (from what the link you supplied says).