The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From National Grid plc:
The National Grid Investor Relations App gives you the latest financial information in an iPad-optimized App. The App allows you to get the latest share price and corporate news, read Annual Reports and results announcements listen to webcasts and watch videos both online and offline.Features include: Content available online and offlineUp to the minute share price informationDocument library with download management facilityMultimedia library with download management facilitySocial bookmarkingLatest regulatory newsShare price graph including a zoom facilityEvents calendarDividend informationTo discover more, download it for free from the App store.