www.r4i-sdhc.com released its R4i SDHC kernel update - R4i SDHC V1.33b before Nintendo 3DS Launch Day, Feb 26th, 2011. And this R4i SDHC kernel update is still compatible with R4i SDHC 1.4.1 card and R4i SDHC 1.4 card.

R4i SDHC Kernel Update Note
R4i SDHC V1.33b can be used on both R4i SDHC 1.4.1 and R4i SDHC 1.4 cards;
R4i SDHC without 1.4.1 or 1.4 can use R4i SDHC V1.09d or R4i SDHC YSMenu V6.51;
R4-SDHC V1.33b is for R4-SDHC card.

R4i SDHC V1.33b Update
This R4i V1.33b fixed DSi Game ROMs below.
5562 - Dengeki Gakuen RPG: Cross of Venus Special (JP)
5557 - Phineas and Ferb Ride Again (US)
5548 - KORG M01 Music Workstation (JP)
5546 - Mario vs. Donkey Kong : Mini-Land Mayhem! (EU)
5543 - Blue Dragon : Awakened Shadow (SP)
5536 - Ghost Trick : Phantom Detective (EU)
5531 - Gyakuten Kenji 2 (JP)
5530 - Dragon Ball Kai : Ultimate Butouden (JP)
5529 - Sora no Otoshimono Forte : Dreamy Season (JP)
5528 - Michael Jackson : The Experience (US)
5527 - Vampire Moon : The Mystery of the Hidden Sun (US)
5522 - Mabeop Cheonjamun DS2 : Choehuui hanjamabeop (KR)
5521 - Inazuma Eleven (FR)
5515 - Inazuma Eleven (DE)