Here's a quote from their announcement Jon linked in his post.
NO. However, you can surely use it to tip anyone on PeakD or Hive.blog. Our first goal though, is to embrace the budding cryptocurrency community that is emerging on Twitter.#hivetips is a revolutionary way to reward your favorite and deserving users on the Hive blockchain with a 'tip'! Wait, do you mean just like on the PeakD front end?
So, no, it doesn't matter what front end you use.
Cool. Too bad I'm on my phone most of the time.