So is the Gnome bard ability. I am just not seeing the issue, from the three we have been shown it it easy to get the feel the new options are all or mostly better on some levels then the HP or skill point.
But better is subjective as sometimes you want that skill point and others ya want the HP. Sure you can take toughness and take false life, but ya can do that now with the HP and the guy that does will always have more then he who does not. At no time is the new ability a no brainier for every build and every human sorcerer and sure as hell not for every level.
So, just take false life then and forget about toughness. That way you get the hit points and 19 other spells. Now you have what he has plus more stuff. i.e. you're better than him.
Hell, take levitate, invisibility, charm person, knock, or any number of other "like a skill but better" spells as well. Then choose 18 other spells. Now you have what the hp guy has AND what the skill guy has. Plus more stuff. I.e. you're better than both of them.
When you meet the guy who has the hp and false life, you're worse than him by 1-20 hp depending on level. At whatever level you're playing, that's not even one hit's worth of damage and meanwhile he can't do 1-20 other cool things that either make him more powerful and/or might save his life when 1-20 measly hp are not enough.
At first level, an at-will cantrip > 1hp... and it only gets better from there. When you reach the point where you're choosing between 1 bonus hp and glitterdust, or haste, or dragon form, or polymorph any object, you've gotta ask yourself... why am I even pondering this choice?
About the only levels where the hp/skill point might be better is 2nd/3rd because yet another cantrip at that point is nothing much.
(Remember, not saying it is overpowered, just a better option than a hp or a skill point).
Re: The gnome bard ability
Yeah, it is probably better too. But not nearly as "better" as the spells dealie for sorcerers. Bards reach the 20s for rounds/day fairly quickly at which point they'll be able to have music up for almost all of almost every fight and don't really get much out of more rounds.