Web action analytics. Tracks events rather than pageviews, so users clicking "Like", etc. All data in real time, detailed analysis, retained >3yrs. Pricing is free up to 25k data points, $150 for 500k, and upwards. Interesting.
Tools to automate and track the success of repetitive emails. Insteads of copying / pasting the same pitches in email, use tout and track response, opens, clicks, etc on all the different templates. $30/month for 1 user, $50 for 3, $100 for 10.
GPS sat nav handheld devices with built-in spot messenger functionality. Epic! Starts from $550. Ideal for the true outdoor adventurist. Twitter just went global.
A small satellite pager ($170) which offers tracking service ($100/yr) and a mapping service (map your location, $50/yr) and other emergency contact features.
Track a whole bunch of stuff online, automatically. Seems to be an RSS aggregator on steroids with a catalogue function built in so you can "shop" for feeds...