Calling all tech-addicts: Here's the latest killer app that will both feed your fix and recommend a restaurant. Vindigo is a new service for mobile Palm devices that acts as a a portable hip (pun intended) know-it-all, guiding users to their city's best restaurants, bars, nightclubs, stores, and movies. Vindigo is now available for residents of New York City, Chicago, Boston, San Francisco, and Washington, D.C., with more cities scheduled to launch later this year.

The free application is available from the Vindigo Web site (www.vindigo.com). Once installed on your Palm-compatible handheld, information about thousands of places to go and things to do is automatically downloaded onto your system each time you sync your handheld. To keep download time swift, only new or updated information is transferred with each sync. And to avoid becoming a memory hog, data compression technology is used to store the information (about 410K of memory).

Vindigo's main screen offers you three options: Eat (reviews for thousands of restaurants, delis and coffee shops), Shop (places to buy books, wine, music, flowers, and more), and Play (listings of bars, clubs, movie theaters and showtimes). You simply enter your location by selecting the nearest intersection or neighborhood, and choose what you want to do. Vindigo takes it from there, making recommendations and showing you options. It even provides directions to the specified destination.

The information comes from some familiar sources. Many restaurant reviews are courtesy of Zagat, club recommendations come from clubplanet.com, and shopping recommendations from inshop.com. Depending on the city, Vindigo also offers content from sfgate.com, washingtonpost.com, and nytoday.com, the online partners of The San Francisco Chronicle, Washington Post and New York Times Digital. You can specify what your preferred content providers are by using Vindigo's options.

Vindigo is compatible with all devices based on the Palm OS (Palm Professional, Palm III, Palm V, Palm VII, Handspring Visor, IBM WorkPad). Minimum system requirements are Palm OS 2.5, Windows 95 or 98, Mac OS 8x Netscape Navigator 3.0 or Internet Explorer 4.0, and Palm Hotsync Manager 2.0.