All the portals we looked at except GoAmerica can retrieve flight info. The others let you obtain details about flights by flight number or by selecting from a schedule, and the OmniSky and Palm. If you want to book your flights through someone other than BizTravel, you'll run into problems. Unless you find sites that are optimized for mobile users, you'll struggle to connect to other travel sites' normal Web pages. These services can tap into an itinerary of existing flights so you can check for any delays or problems.
Few experiences are more frustrating than getting lost.
Fortunately, all the portals we tested offer a way to get directions. The Palm VII doesn't include a Web browser, but the Palm. Net portal provides services such as the Etak Traffic Touch Web Clipping Application, which lists major problems on the roads in your area, and a Starbucks locator for finding the nearest branch outlet of the ubiquitous coffeehouse. The others provide more financial tools. GoAmerica and OmniSky maintain text-based versions of a range of financial news sites such as Fox Market Wire and The Motley Fool.