So a friend of mine and I were playing Baseball Superstars 2011 and were wondering some ways to get G Points easy and in a large bulk quantity. Here's how.
1) Have 2 people with the same game and their IDs.
2) Titanium Backup your application before you send the G Points.
3) Send the G Points to whomever your friend is.
4) Go back to your application backup in Titanium Backup.
The result of this is that your friend gets your G Points that you sent, but you don't lose yours and you can do this as much as you want. The limit to send G Points I believe is 30,000 and that actually unlocks the Transform Boots in My League (Batter). This will also help you get to 99,999 G Points within a couple days to help you get the Deadly Footgear in My League (Pitcher). If you guys have any questions, please feel free to PM me or reply here. Hope this works for everyone that gives it a try and if this was already posted, I apologize for not seeing it earlier.
Update: Just found out as well that if you have your profile created before you do the backup, you will be able to send over as many G Points in one day when you go back to your backup. This will most certainly help anyone that is looking to get a lot of G Points quickly.
Update: Thanks to Roga reporting some bugs with the User ID / G-Point sending limit, this is just an update to notify everyone to be cautious with sending massive amounts of G-Points. One of our accounts were "perm-limited" to our knowledge and you won't be able to send G-Points ever again. We're working on the issue to give a final diagnosis on whether or not it's a constant problem or just user error.