BigDeals via eBay offers the open-box Philips In.Sight Wireless Home Monitor for iPhone/iPad/Android, model no. M100/37, for $39.99 with free shipping. That's $10 under our December mention, the best deal now by $3, and the lowest total price we've seen for this monitor. It features a magnetic base, expandability up to 16 monitors, 802.11n wireless, operation via iPhone and iPad app, noise and motion detection, and the ability to upload recordings to Dropbox.

Note: This item is new, but doesn't come in its original packaging. A 60-day BigDeals warranty applies.