Nokia introduced the successor to its popular N95 mobile phone, the N96, featuring a slightly larger screen, as well as an upgraded mapping program.

The N96, due out by September, has a 2.8-inch LCD TFT screen, a bit larger than the N95's 2.6-inch screen. Minus subsidies and taxes, the phone will sell for €550 ($800), Nokia said at the Mobile World Congress in Barcelona on Monday.

The N96 has 16GB of internal flash memory -- enough to hold roughly 40 hours of video or 12,000 songs -- plus a slot for an 8GB microSD memory card.

Other features are a video camera that records at 30 frames per second and a 5-megapixel camera with Carl Zeiss optics. The N96 also includes Nokia's Assisted GPS (Global Positioning System) application, which lets users put markers on the photos based on their location, known as "geotagging." Photos can then be uploaded to photo-sharing services such as Yahoo's Flickr, Nokia said.

A-GPS is also a feature on three other new Nokia products: the 6210 Navigator, 6220 classic and the N78. The phones will also have Maps 2.0, Nokia's latest upgrade to its mapping program, also announced Monday. Maps 2.0 has been in a beta release, and Nokia has been expanding the number of countries that Maps covers.

The most notable feature of Maps 2.0 is the "Walk" feature for pedestrians. The feature taps into a piece of technology in the 6210 -- an "accelerometer" -- that detects when a walker changes direction. Used with the device's built-in compass, a pedestrian can watch their progress on the mapping program as they are moving, as well as get directions to a different location.

Minus taxes and subsidies, the 6210 Navigator will retail for €300; the 6220 classic for €325 and the N78 for €350. The 6210 and 6220 should be available by September, with the N78 coming out before the end of June, Nokia said.

Nokia is also trying build interest in Ovi.com, its Web site where users can share photos, buy music and access third-party services such as Flickr. The latest upgrade, "Share on Ovi," lets people create a personal account to publish their photos.

The service is free and intended to be a one-stop place where people can manage their content on their phones and PCs. However, Ovi.com is in a field crowded with other competitors, such as Facebook.

Nokia also took a step in the mobile advertising arena. The company has launched the Nokia Media Network, a consortium of operators and publishers. Nokia said the platform will let advertisers book mobile ad campaigns, reaching some 100 million mobile users.

Media publisher Hearst, Reuters, Sprint, and Discovery Communications have joined the network, Nokia said.