There is a 5 minconsult for peds, but I don't use much now. It is very basic and less valuable as your knowledge base increases. I have kidometer, which is great becuase it has age adjusted values for kids (labs, vitals, even HCM stuff). I do not know whether it is available for the pocket PC. There is a height/weight/HCM/BMI program which is awesome -- I'll have to find it later and post a link -- I also don't know whether that is available for the PPC. If you do a lot of newborn, then you should go to bilitool.org and download the program. This is a software version of the AAP recomendations for phototherapy. Finally, I have the Harriett Lane on my PDA. 90% of the time I use it for medication dosing. Its quite a memory hog and not particularly easy to use. If you have an on line formulary at your institution and don't need the Pharm section of the HLH, I'd say that it isn't worth it.
Hope that helps
Ed.