WP7Lab have compiled a list of the top 10 Valentines day apps on Windows Phone 7.
His collection is a bit eclectic, but here is the ones I think are the most relevant:
3. Dinner reservations are vital on Valentineâ€™s Day and youâ€™d better make sure that you have an â€œOpenTableâ€ at some fancy restaurant.
4. â€œFood and Wine Pairingâ€ is something that you develop during years of practice, but if you download the Food and Wine Pairing app for Windows Phone, your girl will think youâ€™re heavily versed in the wine tasting art.
5. At the end of the day, while youâ€™re gently walking her back home, youâ€™d better close the deal with saying â€œI Love Youâ€.
However, donâ€™t just say it like that, but actually put a little effort into it and say it in (letâ€™s say) 101 ways, with the help of _101_I_love_you app for Windows Phone (neat trick, right?)
10. Last but not least, at the end of the night or when you think the time is right for you to get a bit closer, you might want to take a snapshot of you two and use â€œValentine Bordersâ€ to give it a more â€œlovingâ€ look.
See the full list, which is actually pretty useful at WP7Lab here.