Given the fact that I've never been a tremendous fan of skill consolidation (due primarily to the fact that I'm much more a fan of having the options for diversification available even if they're not always taken, I'd like to make a suggestion for changing skills in Pathfinder to utilize the Skill Groups method from the Iron Heroes sourcebook by Fiery Dragon Productions. As far as I can tell, the information is Open Content due to the Open Content statement at the beginning of the book.
Effectively what would happen is that instead of consolidating skills to try to deal with the issues that are currently in place of having enough skill points to go to the 'necessary' skills for a particular class, they keep all the skills separate and just group the skills in something they call skill groups. They are as follows:
Academia: Appraise, Concentration, Decipher Script, Heal, Knowledge, and Speak Language
Agility: Balance, Escape Artist, and Tumble
Athletics: Climb, Jump, and Swim
Mysticism: Concentration, Decipher Script, Spellcraft, and Use Magic Device
Perception: Listen, Search, Sense Motive, and Spot
Robbery: Disable Device, Forgery, Open Lock, and Sleight of Hand
Social: Bluff, Diplomacy, Gather Information, and Intimidate
Stealth: Hide and Move Silently
Theatrics: Bluff, Disguise, Perform, and Sleight of Hand
Wilderness Lore: Handle Animal, Ride, Survival, and Use Rope
There are a few skills that don't get lumped into any skill group and remain as individual skills (Craft being the notable one). Anyway, the way these work is that each character class gets a few skill groups as being allowed for their class. When spending skill points, if the character wants, they can choose to put a single point into one of their skill groups, raising the skill rank of all of the skills that are part of that skill group at the same time.
The primary benefit to this sort of system in my opinion is that it allows for a good middle ground between 3.5's problem of having too many skills that you might have a hard time getting all the 'necessary' skills for your class and Pathfinder's problem (imo) of having many skills combined and the potential confusion this can create for conversions (related to PrCs, NPCs, etc).
I'm sure I forgot to clarify some point or another so if you are confused about something let me know and I'll try to answer it as best as I can.