Opera Mini is updated to version 5.1 for our Nokia 5800, 5530, 5230 or Nokia X6. This new version 5.1 introduces better memory management, a new optimized browser skin allowing for more pages to be open at the same time, more rapid scrolling through pages, and overall improved browsing performance. Recommended especially for phones with limited memory type S40.
Opera Mini compresses data by up to 90 percent before sending content to the phone, resulting in faster page loading and speed. This compression dramatically reduces data load, which translates to lower browsing costs when on a pay-per-MB data plan, especially when roaming”.