I probably titled it poorly, but my earlier post[1] about Yahoo's new mobile weather app (Yahoo doing mobile right?!?) didn't get past a single point. :P
Like the sibling commenter here, I find that I almost exclusively check the weather on my phone, but I'll keep this at the back of my mind for more thought-out planning. :)
Even the Yahoo Mail app (despite crashing a lot on my phone) is admittedly a lot better looking.