London’s Regent Street is launching a free Walking and Shopping Tour iPhone app which will guide users through the historical places and facts of interest along Regent Street, and pick out some of the best retail stores in London’s West End is located too. There’s also a hard copy walking guide that can be downloaded from www.regentstreetonline.com
Regent Street was Europe’s first ever purpose-built shopping street. Designed and built by John Nash in the 1820s for the Prince Regent who later became George IV, Regent Street was intended as a grand scheme to connect his residence, Carlton House Terrace with the newly created Regent’s Park.

Regent Street will also celebrate the 2010 London Festival of Architecture  from 18 June to 4 July with a series of conceptual window displays by acclaimed architects and design agencies. Each will give a short talk about their designs from within the shops on Tuesday 22 June. There’s more information here.