As of now, there is still no Instagram on WP7.
But don't fear!
Instacam+ is truly excellent, and a great substitution for
Instagram. It does have a free version too with ads, but for 79p we
think its a worthwhile purchase.
"Try out the InstaCam+ app! Make your own photos unique by
adding one of 26+ cool filters(HDR) and 12 great frames and share
them to Facebook, Twitter, Foursquare, Tumblr, Weibo, Vkontakte and
Flickr. View photos on Instagram, comment, like,
If you have a premium Spotify account and
downloaded the WP7 Spotify app yet then you are missing out.
Its got a very simple, and easy to use UI making it easy to listen
to your tunes while out and about (Perfect for the gym!). It does
however to be a battery hog, and you'll be charging your phone more
than usual. Still worth the download though.
"Spotify opens up your Windows Phone to a world of music.
With Spotify Premium you can access millions of tracks from our
library, and take your playlists on the go with the Offline mode -
no connection needed."